Ratio 3 : 5 as apples to berries
The video interprets as a relationship between two collections: for every 3 apples there are 5 berries. This establishes the meaning of the ratio before any fraction is formed.
Cognito · YouTube · 4:27
This 150-second introductory algebra clip teaches how to convert the ratio 3 : 5, interpreted as apples to berries, into fractions. It first stresses that a ratio fixes only the relative relationship, not the total, by showing equivalent cases with totals 8, 16, and 24. It then chooses the simplest version, 3 apples, 5 berries, and total 8, to derive the part-to-whole fractions and . Next it forms the part-to-part fractions and , and finally interprets as the improper fraction approximately equal to 1.67, meaning there are about 1.67 times as many berries as apples. This 117-second introductory lesson teaches how to convert ratios into fractions by contrasting part-to-whole and part-to-part interpretations. It first uses a visual example with 3 apples and 5 berries to show , , , and , plus the rounded decimal statement 1.67 times as many berries as apples. It then solves a word problem where chocolate and plain cookies are in the ratio 4 : 3, obtaining for the fraction of total cookies that are chocolate and for plain cookies as a fraction of chocolate cookies.
Use the learning inspector for key ideas and moments, or open the reading tabs for the complete notes.
Generated from the video's visuals and explanation; not verbatim speech.
The clip opens with a short logo animation and no mathematics yet.
The title announces the goal: converting a ratio into fractions. The example ratio shown is .
The narrator gives the ratio a concrete meaning: apples to berries. Visually, the first term is paired with 3 apples and the second with 5 berries, so the statement is that for every 3 apples there are 5 berries.
A key warning follows: a ratio alone does not determine the total number of objects. The screen supports this by showing several equivalent situations, including totals of 8, 16, and 24, all preserving the same 3-to-5 relationship.
Because the later fractions only depend on the relative sizes of the parts, the video chooses the simplest representative case: 3 apples, 5 berries, and therefore fruits in total.
From that simplest case, the lesson constructs part-to-whole fractions. The fraction of all fruit that are apples is , and the fraction of all fruit that are berries is . The denominator is the total number of parts, not one of the original ratio terms.
The video then switches to part-to-part fractions, which compare one quantity directly with the other. Apples compared with berries gives , read as "three fifths as many apples as berries." Reversing the comparison gives , read as "five thirds as many berries as apples."
Finally, the clip addresses the potentially surprising improper fraction . It explains that such a fraction is still just a number, and rewrites it approximately as . The intended interpretation is that the number of berries is about times the number of apples, although the last spoken sentence is cut off before completion.
The clip opens on a completed visual board titled HOW TO CONVERT RATIOS TO FRACTIONS. At the top, the ratio APPLES : BERRIES is shown as 3 : 5, with 3 apple icons and 5 berry icons, and the total is written as TOTAL = 8.
From that same ratio, the board displays four different fraction statements. On the left, the part-to-whole fraction of fruit that are apples is . On the right, the part-to-whole fraction of fruit that are berries is .
The lower half switches to part-to-part comparisons. The number of apples as a fraction of the number of berries is , and the number of berries as a fraction of the number of apples is .
The video then rewrites the last relationship in decimal form as 1.67 times as many berries as apples, and checks it numerically by writing . This confirms the intended relationship, while making clear that 1.67 is a rounded decimal version of .
After the first board clears, a new word problem appears: Ben has a bag of chocolate and plain cookies in the ratio of 4 : 3. Part 1 asks for the fraction of total cookies that are chocolate. Part 2 asks for the number of plain cookies as a fraction of the number of chocolate cookies.
The solution begins by writing down the known ratio with labels: CHOCOLATE : PLAIN = 4 : 3. This fixes which number belongs to chocolate and which belongs to plain.
For part 1, the method first finds the whole represented by the ratio. The screen computes TOTAL NUMBER: . Because the question asks for a fraction of the total cookies, the chocolate count is placed over this total, giving .
For part 2, the wording changes the comparison. Instead of using the total as the denominator, the question asks for plain cookies relative to chocolate cookies. So the solution forms PLAIN COOKIES / CHOCOLATE COOKIES and substitutes the ratio values to get .
The two answers therefore illustrate the key rule from the lesson: the same ratio 4 : 3 can produce different fractions depending on whether the denominator is the total collection or the other quantity being compared against.
The mathematical content then ends and an outro card appears with WE ALSO DO..., empty boxes, speech bubbles, and production credits while the narrator closes the video.
The video interprets as a relationship between two collections: for every 3 apples there are 5 berries. This establishes the meaning of the ratio before any fraction is formed.
The same ratio can correspond to different totals. The clip shows examples with totals 8, 16, and 24, demonstrating that a ratio determines relative amounts rather than an absolute count.
To convert the ratio into fractions, the video chooses the smallest whole-number representative: 3 apples, 5 berries, and total . This simplification does not change the fractional relationships.
When asking what fraction of all fruit is one type, the denominator is the total number of parts. Here apples give and berries give .
When comparing one quantity directly with another, the denominator is the other part of the ratio, not the total. From , apples compared with berries is , and berries compared with apples is .
The clip explains that is not problematic just because it exceeds 1. It represents a numerical multiplier, approximately , meaning there are about 1.67 times as many berries as apples.
The lesson’s core method is to read the ratio carefully, identify the two quantities being compared, and then decide what the denominator should be. If the question asks for a fraction of the whole collection, add the ratio parts to get the total. If it asks how many of one quantity there are as a fraction of another quantity, use the other quantity itself as the denominator.
A part-to-whole fraction compares one member of a ratio to the total of all members. In the examples, 3 : 5 becomes and after noting TOTAL = 8, and 4 : 3 becomes after computing .
A part-to-part fraction compares one quantity in a ratio directly to another quantity in the same ratio. From 3 : 5, the video writes for apples relative to berries and for berries relative to apples. From 4 : 3, it writes for plain cookies relative to chocolate cookies.
Given APPLES : BERRIES = 3 : 5 and TOTAL = 8, the board shows four results: of the fruit are apples, of the fruit are berries, there are as many apples as berries, and there are as many berries as apples. The last statement is also checked with the rounded decimal 1.67, since .
The problem states that chocolate and plain cookies are in the ratio 4 : 3. First the total is found: . Therefore the fraction of total cookies that are chocolate is . For the second question, plain cookies are compared directly to chocolate cookies, so the answer is .
One frequent error is to assume every fraction from a ratio must have the total as its denominator. The cookie example shows why this is wrong: the same ratio 4 : 3 gives for a fraction of the total, but when the question asks for plain cookies as a fraction of chocolate cookies.
In the apples-and-berries example, is the exact fraction for berries relative to apples. The displayed 1.67 is a rounded decimal approximation used to check the relationship numerically through .
Explore conditions, steps and evidence. Supplementary explanations are labeled separately from content shown in the video.
The ratio is written on screen as "3 : 5".
The narrator introduces the example as "ratios like three to five" and interprets it as apples to berries.
3 : 5
Ratio of apples to berries in the worked example.
Positive integer ratio terms; here 3 apples and 5 berries in the simplest version.
Narrator says the ratio represents "apples to berries" and that there are three apples.
Three pink apple icons appear under the label "APPLES".
Number of apples represented by the first term of the ratio.
In the simplified model used for conversion, .
Narrator says there are five berries for every three apples.
Five purple berry icons appear under the label "BERRIES".
Number of berries represented by the second term of the ratio.
In the simplified model used for conversion, .
The screen shows "TOTAL = 8" beneath the 3-apple and 5-berry grouping.
Narrator states that in the simple case there would be "a total of eight pieces of fruit".
Total number of fruit pieces in the chosen representative grouping.
For the simplest version shown, .
The fraction is written on screen under the prompt about the fraction of fruit that are apples.
Narrator says, "we just do the number of apples, so three, over the total of eight."
Fraction of all fruit that are apples in the part-to-whole interpretation.
Proper fraction with numerator 3 and denominator 8.
The fraction is written on screen under the prompt about the fraction of fruit that are berries.
Narrator says, "this time we do five over eight" because five of every eight pieces are berries.
Fraction of all fruit that are berries in the part-to-whole interpretation.
Proper fraction with numerator 5 and denominator 8.
The fraction appears beside the text "AS MANY APPLES AS BERRIES".
Narrator says there are "three over five, or three fifths, as many apples as there are berries."
Part-to-part fraction comparing apples with berries.
Proper fraction with numerator 3 and denominator 5.
The fraction appears beside the text "AS MANY BERRIES AS APPLES".
Narrator says, "So five over three. So there's five thirds as many berries as there are apples."
Part-to-part fraction comparing berries with apples.
Improper fraction with numerator 5 and denominator 3.
The decimal "1.67" is shown below .
Narrator says, "five thirds is exactly the same thing as one point six seven."
The displayed value is rounded; the exact decimal expansion of is repeating.
1.67
Rounded decimal representation of the improper fraction .
Approximate decimal form of a rational number.
The worked example shows 3 apples and labels the apple count as 3.
The narrator refers to “the number three, which is how many apples we have.”
3
Number of apples in the ratio example.
Count of apples
The worked example shows 5 berries and labels the berry count as 5.
The narrator says multiplying by 1.67 gives 5, “which is what we expected because we know that for every three apples, we have five berries.”
5
Number of berries in the ratio example.
Count of berries
The screen displays TOTAL = 8 beneath the apples and berries.
8
Total number of fruit pieces, obtained from .
Total count of fruit
Narrator explains that the ratio represents apples to berries and says, "for every three apples, there are five berries."
The screen labels the two terms as "APPLES" and "BERRIES" and shows 3 apple icons and 5 berry icons.
The video defines the ratio 3 : 5 as a relationship between two quantities: for every 3 apples there are 5 berries. The emphasis is on the paired relationship rather than on a fixed total count.
The ratio compares two categories, here apples and berries.
It states a relative relationship, not necessarily an absolute total.
Narrator says, "because it's only a ratio, we can't tell the total number of pieces of fruit."
Multiple scaled examples are shown: 3 and 5 with TOTAL = 8, 6 and 10 with TOTAL = 16, and 9 and 15 with TOTAL = 24.
The video demonstrates that the same ratio can correspond to different totals. The ratio fixes the relative sizes of the parts, while the actual total depends on which equivalent multiple of the ratio is chosen.
The ratio is known.
No additional information fixes the scale factor or total.
Narrator says they can "act as though there's three apples, five berries, and eight pieces in total, because this is the most simple version."
A box labeled "MOST SIMPLE VERSION" highlights the 3-apple, 5-berry grouping with TOTAL = 8.
To convert a ratio into fractions, the video chooses the smallest whole-number representative of the ratio. For 3 : 5, this means treating the situation as if there are exactly 3 apples, 5 berries, and 8 fruits in total.
The ratio terms are positive integers.
The goal is to form fractions from the ratio.
Using the simplest representative does not change the fractional relationships.
Narrator says, "to find the fraction of fruit that are apples, we just do the number of apples ... over the total of eight," then repeats the method for berries.
The screen shows and under prompts asking for the fraction of fruit that are apples and berries.
A part-to-whole fraction is formed by placing one term of the ratio over the sum of all terms. In this example, apples over total gives , and berries over total gives .
The whole is the sum of the compared parts.
The ratio terms are treated as the numbers of parts in the simplest version.
Narrator says they can write "how many apples there are as a fraction of how many berries there are, and vice versa."
The screen shows with "AS MANY APPLES AS BERRIES" and with "AS MANY BERRIES AS APPLES".
A part-to-part fraction compares one quantity directly with another quantity in the ratio. From 3 : 5, the video forms for apples compared with berries and for berries compared with apples.
The fraction compares two parts of the same ratio.
The order of numerator and denominator determines which quantity is being compared to which.
Narrator says, "fractions like five thirds just represent numbers" and identifies with 1.67.
The screen displays and then 1.67 below it.
The spoken phrase "exactly the same thing as one point six seven" should be understood as a rounded decimal representation, not an exact terminating decimal.
The video explains that a fraction such as is still a valid number even though it is larger than 1. It is used to express that one quantity is more than another in a part-to-part comparison.
The numerator is larger than the denominator.
The fraction is being interpreted as a numerical multiplier in a comparison.
The title reads HOW TO CONVERT RATIOS TO FRACTIONS.
The narrator demonstrates converting a ratio into fractions by using the ratio terms and their sum.
To convert a ratio into fractions, identify the two quantities being compared, use each quantity as a numerator when needed, and choose the denominator according to the question: the total of the ratio parts for a part-to-whole fraction, or the other quantity for a part-to-part fraction.
The ratio must compare two quantities.
The wording of the question determines whether the denominator is the total or the other quantity.
The first example shows and after displaying TOTAL = 8.
The second example computes TOTAL NUMBER: and then gives .
A part-to-whole fraction compares one part of a ratio to the total of all parts. In the examples, the total is found by adding the ratio terms, so 3 : 5 gives total 8 and 4 : 3 gives total 7.
The denominator must represent the whole collection described by the ratio.
The first example shows AS MANY APPLES AS BERRIES and AS MANY BERRIES AS APPLES.
The second example shows PLAIN COOKIES over CHOCOLATE COOKIES and gives .
A part-to-part fraction compares one quantity in a ratio directly to another quantity in the same ratio. The denominator is the quantity being compared against, not the total.
The question asks how many of one item there are as a fraction of another item.
The video shows 3:5, 6:10, and 9:15 as different totals that preserve the same relationship.
Narrator says the total could be 8, 16, or 24, but all we know is that for every three apples there must also be five berries.
This claim is not stated as a formal theorem in the video; it is inferred from the worked demonstration.
If a ratio is multiplied by the same positive factor in both terms, the resulting part-to-whole and part-to-part fractions are unchanged.
The original ratio has positive integer terms.
Both terms are multiplied by the same positive factor.
For any common positive scaling factor applied to both terms of the ratio.
Narrator explicitly uses the total 8 as the denominator when finding the fraction of fruit that are apples and berries.
The displayed fractions are and .
When converting a two-term ratio a : b into fractions of the whole, the denominator is .
The ratio terms a and b represent the parts of a single whole.
The question asks for the fraction of the whole occupied by one part.
For the two-part ratio shown in the example.
Narrator contrasts "how many apples ... as a fraction of how many berries" with the reverse wording.
The screen pairs with "AS MANY APPLES AS BERRIES" and with "AS MANY BERRIES AS APPLES".
From a ratio a : b, the fraction expresses how many a there are per b, while expresses how many b there are per a.
a and b are the two quantities being compared.
The fractions are interpreted as part-to-part comparisons.
For the two quantities in the ratio.
Narrator walks through choosing the simplest version, computing the total, then forming , , , and .
The screen successively displays TOTAL = 8, , , , and .
Start with the given ratio of apples to berries.
This is the example introduced at the beginning of the clip.
Choose the simplest representative version and add the two parts to get the total number of fruit.
The video says we can act as though there are 3 apples, 5 berries, and 8 pieces in total.
Form the fraction of all fruit that are apples by putting the apple count over the total.
This is the part-to-whole rule demonstrated on screen and in narration.
Form the fraction of all fruit that are berries by putting the berry count over the total.
The same part-to-whole rule is applied to the other term.
Form the part-to-part fraction comparing apples with berries.
The narrator explicitly says there are three fifths as many apples as berries.
Reverse the comparison to express berries relative to apples.
The narrator says to show how many berries there are as a fraction of how many apples, do it the other way round.
The ratio 3 : 5 yields the part-to-whole fractions and , and the part-to-part fractions and .
Narrator says fractions like five thirds just represent numbers and equates with 1.67.
The screen shows and then 1.67.
The decimal is rounded; the exact value is the repeating decimal 1.666...
The final spoken sentence is cut off before the full multiplier statement is completed.
Begin with the part-to-part fraction comparing berries to apples.
This fraction was derived directly from the ratio 3 : 5.
Rewrite the fraction in decimal form to interpret it as a number.
The video states that five thirds is the same thing as 1.67, using a rounded decimal display.
Read the decimal as a multiplier telling how many times as many berries there are compared with apples.
This follows from the preceding part-to-part comparison; the clip ends before the narrator finishes the sentence.
The fraction means that the number of berries is about 1.67 times the number of apples.
The narrator says: if we take the number three, which is how many apples we have, and multiply it by 1.67, we get five.
The screen writes .
The equality is presented as a check using the rounded decimal 1.67 rather than the exact fraction .
The video multiplies the number of apples by the displayed decimal multiplier to recover the number of berries.
This checks the statement that there are 1.67 times as many berries as apples.
Using the rounded multiplier 1.67, the example verifies that 3 apples correspond to 5 berries.
The screen shows TOTAL NUMBER: .
The narrator says to add together four and three to get a total of seven cookies.
The ratio parts for chocolate and plain cookies are added to obtain the whole number of cookies represented by the ratio.
A part-to-whole fraction requires the total of all parts.
The total corresponding to the ratio 4 : 3 is 7.
The solution writes for part 1 and for part 2.
The narrator explains putting 4 over the total 7, then putting 3 over 4 for the second part.
For the fraction of total cookies that are chocolate, the number of chocolate cookies is placed over the total number of cookies.
This matches a part-to-whole interpretation of the ratio.
For the number of plain cookies as a fraction of the number of chocolate cookies, the number of plain cookies is placed over the number of chocolate cookies.
This matches a part-to-part comparison between the two quantities in the ratio.
From the ratio 4 : 3, the video obtains for chocolate out of total and for plain as many as chocolate.
The entire clip works through the example of converting the ratio of apples to berries into fractions.
The screen repeatedly shows 3 apples, 5 berries, TOTAL = 8, and the resulting fractions.
Given the ratio 3 : 5 representing apples to berries, express the relationship using fractions.
Ratio: 3 : 5
Interpretation: apples : berries
Simplest representative totals: 3 apples, 5 berries, 8 total fruit
Find (i) the fraction of all fruit that are apples, (ii) the fraction of all fruit that are berries, (iii) apples as a fraction of berries, and (iv) berries as a fraction of apples.
Use the simplest version of the ratio and compute the total number of fruit.
The video says this is enough for converting the ratio into fractions.
The fraction of fruit that are apples is 3 over 8.
Part-to-whole fraction: number of apples divided by total fruit.
The fraction of fruit that are berries is 5 over 8.
Part-to-whole fraction: number of berries divided by total fruit.
There are three fifths as many apples as berries.
Part-to-part fraction: apples compared with berries.
There are five thirds as many berries as apples, which is about 1.67 times as many.
Part-to-part fraction reversed, then interpreted as a decimal multiplier.
Apples are of the fruit, berries are of the fruit, there are as many apples as berries, and there are times as many berries as apples.
The two part-to-whole fractions add to 1 because , and the two part-to-part fractions are reciprocals because and invert one another.
The screen shows APPLES : BERRIES = 3 : 5, TOTAL = 8, and four resulting fraction statements.
The narrator explains that 3 times 1.67 gives 5 because for every three apples there are five berries.
The decimal 1.67 is visibly rounded; the exact fraction form is also shown separately.
Given 3 apples and 5 berries, find the fraction of fruit that are apples, the fraction of fruit that are berries, how many apples there are as a fraction of how many berries there are, and how many berries there are as a fraction of how many apples there are.
Apples : Berries = 3 : 5
Total fruit = 8
Express the given ratio as both part-to-whole and part-to-part fractions.
The number of apples is placed over the total number of fruit.
This answers the part-to-whole question for apples.
The number of berries is placed over the total number of fruit.
This answers the part-to-whole question for berries.
The number of apples is placed over the number of berries.
This answers how many apples there are as a fraction of how many berries there are.
The number of berries is placed over the number of apples.
This answers how many berries there are as a fraction of how many apples there are.
The video checks the last relationship using the rounded decimal 1.67.
This verifies the statement that there are 1.67 times as many berries as apples.
, , , ; equivalently 1.67 times as many berries as apples.
The video verifies the decimal relationship by computing .
The problem text reads BEN HAS A BAG OF CHOCOLATE AND PLAIN COOKIES IN THE RATIO OF 4 : 3.
The worked solution shows CHOCOLATE : PLAIN = 4 : 3, TOTAL NUMBER: , then and with green check marks.
The narrator reads the question and explains both parts step by step.
Ben has a bag of chocolate and plain cookies in the ratio of 4 : 3. Part 1 asks for the fraction of total cookies that are chocolate. Part 2 asks to express the number of plain cookies as a fraction of the number of chocolate cookies.
Chocolate : Plain = 4 : 3
Find (1) the fraction of total cookies that are chocolate and (2) the number of plain cookies as a fraction of the number of chocolate cookies.
Write down the known ratio with labels for each quantity.
This identifies which number belongs to chocolate and which belongs to plain.
Add the two parts of the ratio to get the total number represented by the ratio.
A part-to-whole fraction needs the total of all parts.
Place the number of chocolate cookies over the total number of cookies.
This answers part 1, the fraction of total cookies that are chocolate.
Place the number of plain cookies over the number of chocolate cookies.
This answers part 2, expressing plain cookies as a fraction of chocolate cookies.
Part 1: . Part 2: .
Both final answers are marked with green check marks on screen.
The title "HOW TO CONVERT RATIOS TO FRACTIONS" appears, followed by the centered ratio "3 : 5".
Title text
Ratio 3 : 5
The screen changes from a blank white background to the lesson title.
The ratio 3 : 5 is then added beneath the title.
No numerical manipulation occurs yet.
The ratio remains the central object on screen.
This opening establishes the topic and the specific example ratio that will be converted into fractions.
The words "APPLES" and "BERRIES" appear above the two terms, and 3 pink apple icons plus 5 purple berry icons appear below them.
Label APPLES
Label BERRIES
3 apple icons
5 berry icons
The abstract ratio is assigned category labels.
Icon counts are added to visualize the terms.
The ratio remains 3 : 5.
The left term corresponds to apples and the right term to berries.
The animation turns the symbolic ratio into a concrete comparison of two counted collections.
Three groupings are shown side by side: 3 and 5 with TOTAL = 8, 6 and 10 with TOTAL = 16, and 9 and 15 with TOTAL = 24.
Group 1: 3 apples, 5 berries, TOTAL = 8
Group 2: 6 apples, 10 berries, TOTAL = 16
Group 3: 9 apples, 15 berries, TOTAL = 24
Additional scaled examples appear one after another.
The totals increase while the ratio relationship stays the same.
Each grouping preserves the proportion 3 : 5.
The visual message is that the total is not uniquely determined by the ratio alone.
This sequence demonstrates that a ratio fixes relative amounts, not the absolute total.
A blue box labeled "MOST SIMPLE VERSION" points to the 3-apple, 5-berry grouping with TOTAL = 8.
Blue box
Label MOST SIMPLE VERSION
3-apple / 5-berry grouping
Attention is narrowed from multiple possible totals to one chosen representative case.
The selected grouping is visually emphasized.
The underlying ratio remains 3 : 5.
The chosen case is the smallest whole-number version.
The video signals that for conversion purposes it is sufficient to work with the simplest equivalent form.
Fractions are written one by one: , , , and , each paired with explanatory text.
Prompt about fraction of fruit that are apples
Prompt about fraction of fruit that are berries
Prompt about apples as a fraction of berries
Prompt about berries as a fraction of apples
Fractions , , ,
The screen moves from part-to-whole fractions to part-to-part fractions.
Each new fraction is introduced with matching verbal wording.
All fractions are derived from the same base ratio 3 : 5.
The counts 3, 5, and total 8 remain the source values.
The visual progression distinguishes two different ways of turning a ratio into fractions.
The fraction is boxed and the decimal 1.67 is written below it.
The clip ends before the narrator completes the final explanatory sentence.
Fraction
Decimal 1.67
The part-to-part fraction is reframed as a decimal number.
The visual focus shifts from ratio language to multiplier language.
The quantity being represented is still the comparison of berries to apples.
This ending clarifies that an improper fraction can be read as a numerical multiplier greater than 1.
The screen is divided into labeled regions showing apples, berries, total, and four fraction prompts.
The equation appears progressively at the bottom right.
3 apple icons
5 berry icons
TOTAL = 8
fraction labels , , ,
decimal label 1.67 x
The multiplication check is written onto the board.
The board then clears before the next example.
The ratio remains 3 : 5 throughout this segment.
The total remains 8 throughout this segment.
The visual layout separates part-to-whole fractions from part-to-part fractions and uses the multiplication check to connect with the rounded decimal 1.67.
A new whiteboard-style page presents the cookie problem and then fills in the solution line by line.
Text appears sequentially: CHOCOLATE : PLAIN, 4 : 3, TOTAL NUMBER: , then , then PLAIN COOKIES / CHOCOLATE COOKIES, then .
Problem statement about Ben's cookies
CHOCOLATE : PLAIN = 4 : 3
TOTAL NUMBER:
Answer
Answer
Green check marks
The solution is constructed step by step from the given ratio.
Each final answer is confirmed with a green check mark.
The given ratio stays 4 : 3 throughout the worked solution.
The total derived from the ratio stays 7 once computed.
The animation makes explicit that the denominator changes depending on whether the question asks for a fraction of the total or a fraction of the other quantity.
The math content disappears and an outro card appears with WE ALSO DO..., speech bubbles, empty boxes, and credits.
The narrator says the video is finished and thanks the viewer.
WE ALSO DO... heading
two empty rectangular boxes
speech bubbles
credits text
The instructional content is replaced by promotional and credit information.
No further mathematical content is introduced.
This segment functions as the closing card rather than part of the lesson.
Narrator warns, "because it's only a ratio, we can't tell the total number of pieces of fruit."
Several different totals are shown for the same ratio.
A ratio such as 3 : 5 tells you the exact total number of items.
The video shows that the same ratio can correspond to totals of 8, 16, 24, and so on; only the relative relationship is fixed.
The narrator separately introduces fractions of the total fruit and fractions comparing apples with berries.
The screen distinguishes , from , .
All fractions made from a ratio mean the same thing.
The video distinguishes fractions of the whole, using the total 8 as denominator, from direct comparisons between the two parts, using 3 and 5 as numerator and denominator.
Narrator says, "This might seem a bit weird, but remember that fractions like five thirds just represent numbers."
The screen shows and 1.67.
A fraction larger than 1 cannot correctly describe how many of one thing there are compared with another.
The video explains that is a legitimate number and corresponds to about 1.67 times as many berries as apples.
The same ratio 4 : 3 leads to two different denominators: 7 for the fraction of total cookies and 4 for plain as a fraction of chocolate.
The narrator explicitly distinguishes part 1 from part 2 and changes the denominator accordingly.
Assuming that every fraction made from a ratio must use the total of the ratio parts as the denominator.
The denominator depends on the wording of the question: use the total when asking for a fraction of the whole collection, but use the other quantity when asking how many of one item there are as a fraction of another item.
The screen shows both and 1.67 x AS MANY BERRIES AS APPLES.
The narrator uses 1.67 in the check .
This clarification is inferred from the contrast between the exact fraction and the rounded decimal shown on screen.
Thinking that the displayed decimal 1.67 is the exact ratio value rather than a rounded approximation.
In this example, is the exact fraction and 1.67 is a rounded decimal representation used for a quick numerical check.
The narrator first defines the ratio and then says they can use the most simple version for conversion.
The 3 : 5 example is reduced to a highlighted simplest grouping with TOTAL = 8.
Understanding what the ratio means is required before choosing the simplest representative version for conversion.
After selecting the simplest version, the narrator immediately computes and .
TOTAL = 8 is used as the denominator in the next displayed fractions.
The part-to-whole fractions depend on first fixing a representative total, here 8, from the simplest version of the ratio.
The narrator moves from the basic ratio meaning to comparing apples with berries and berries with apples.
The fractions and are built directly from the two ratio terms.
A part-to-part fraction applies the ratio terms directly to one another without using the total.
The screen presents , under prompts about fractions of fruit, then , under prompts about how many of one type compared with the other.
The video contrasts fractions of the whole with direct comparisons between the two parts of the ratio.
After introducing , the narrator comments that such fractions just represent numbers and gives the decimal 1.67.
The improper fraction is followed by the decimal 1.67.
The discussion of part-to-part fractions includes the special case of an improper fraction, here .
The method is demonstrated by first finding totals such as 8 and 7 before writing fractions like and .
The general conversion method includes the special case where one ratio part is compared to the total of all parts.
The same method is also used to write , , and by comparing one quantity directly to another.
The general conversion method also includes the case where one ratio term is compared directly to the other ratio term.
The apple-berry board displays several fraction forms derived from the ratio 3 : 5.
The apple and berry example applies the ratio-to-fraction method to both part-to-whole and part-to-part cases.
The cookie problem explicitly asks for one part-to-whole fraction and one part-to-part fraction from the ratio 4 : 3.
Ben's cookie problem applies the same method in a word-problem setting.
The cookie solution contrasts with from the same ratio 4 : 3.
Both come from the same ratio, but they differ in what the denominator represents: the whole collection versus the other quantity.
Narrator explains the ratio as apples to berries.
Labels APPLES and BERRIES are attached to 3 : 5.
Narrator says a ratio alone does not tell the total number of fruit.
Totals 8, 16, and 24 are shown for the same ratio.
Narrator says they can act as though there are 3 apples, 5 berries, and 8 pieces in total.
TOTAL = 8 is displayed and then used in and .
The screen shows both and with different wording.
Narrator distinguishes fraction of fruit that are apples from apples as a fraction of berries.
Narrator says there are five thirds as many berries as apples and links this to 1.67.
and 1.67 are shown together.
The final sentence is truncated in the clip.
Narrator says fractions like five thirds just represent numbers.
The decimal 1.67 is shown below .
Title: HOW TO CONVERT RATIOS TO FRACTIONS.
The cookie example adds before giving .
The second cookie answer uses rather than a denominator of 7.
The board shows 1.67 x AS MANY BERRIES AS APPLES and .
The worked solution ends with and marked correct.
Covered · Intro logo animation with no mathematical content.
Covered · Title card introduces the task of converting ratios to fractions and displays the example ratio 3 : 5.
Covered · The ratio is interpreted concretely as apples to berries with matching icon counts.
Covered · The video explains that a ratio does not determine the total and shows several equivalent scaled examples.
Covered · The narrator selects the simplest representative version, 3 apples, 5 berries, total 8, for conversion.
Covered · Part-to-whole fractions are constructed as for apples and for berries.
Covered · Part-to-part fractions are constructed as for apples compared with berries and for berries compared with apples.
Covered · The improper fraction is interpreted as a number approximately equal to 1.67, showing a multiplier greater than 1.
Covered · Opening worked example converts the ratio 3 : 5 of apples to berries into part-to-whole and part-to-part fractions, including the rounded decimal check .
Covered · Transition period where the first board clears and the next problem is introduced; no new mathematical content is added.
Covered · Word problem with chocolate and plain cookies in the ratio 4 : 3 is solved to give and .
Covered · Outro and credits card with closing remarks; no further mathematical content.
Reviewed subject paths