Printable math worksheet featuring five word problems that teach students how to multiply fractions using cross cancelling.
Worksheet titled "Multiplying Fractions by Cross Cancelling" with five word problems involving fraction multiplication.
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Step-by-step solution for: Fraction Multiplication Word Problems Worksheets
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Show Answer Key & Explanations
Step-by-step solution for: Fraction Multiplication Word Problems Worksheets
Let’s solve each problem one by one, step by step. We’ll use cross-canceling when multiplying fractions — that means we simplify before multiplying to make the math easier.
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Problem 1:
> The closet in the foyer is 5/6 feet high, and the closet in the bedroom is 24/5 times as high as the closet in the foyer. What is the height of the closet in the bedroom?
We multiply:
(5/6) × (24/5)
Look for numbers we can cancel across the numerator and denominator.
- The 5 in the top left cancels with the 5 in the bottom right → both become 1.
- The 6 in the bottom left and 24 in the top right → 24 ÷ 6 = 4, so 24 becomes 4 and 6 becomes 1.
Now it’s:
(1/1) × (4/1) = 4
✔ So the bedroom closet is 4 feet high.
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Problem 2:
> Orlando picked 3/8 bushel of corn last year. This year he collected 16/3 times the yield. How much corn did he harvest this year?
Multiply:
(3/8) × (16/3)
Cancel:
- 3 on top left and 3 on bottom right → both become 1.
- 8 on bottom left and 16 on top right → 16 ÷ 8 = 2, so 16 becomes 2, 8 becomes 1.
Now:
(1/1) × (2/1) = 2
✔ He harvested 2 bushels this year.
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Problem 3:
> Perry’s Earth-Day speech lasted 7/9 minutes. Marcia’s speech was 4/7 times longer than Perry’s. How many minutes did Marcia speak for?
Wait — “times longer” here likely means “multiplied by”, not “added”. In math problems like this, unless specified otherwise, “X times longer” usually means multiply.
So:
(7/9) × (4/7)
Cancel:
- 7 on top left and 7 on bottom right → both become 1.
Left with:
(1/9) × (4/1) = 4/9
✔ Marcia spoke for 4/9 minutes.
*(Note: If “longer” meant addition, it would be 7/9 + (4/7)(7/9), but that’s more complex and not typical for this level. The context suggests multiplication.)*
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Problem 4:
> The bird feeder held 14/15 ounces of seeds in the morning. After a while, only 1/2 of the seeds remained. How many ounces were remaining?
This is straightforward: find half of 14/15.
Multiply:
(14/15) × (1/2)
Cancel:
- 14 and 2 → 14 ÷ 2 = 7, 2 ÷ 2 = 1
So:
(7/15) × (1/1) = 7/15
✔ 7/15 ounces remained.
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Problem 5:
> Mr. Thompson wants his daughters to ride a bike. They cover 1/5 of a trip on the first day. On the second day, they cover 3/4 of the distance from the first day. How many miles did they ride on the second day?
Wait — the problem doesn’t say how long the whole trip is! But looking again… it says “how many miles” — but no total distance is given. That must mean we’re just finding what fraction of the *whole trip* they rode on day two? Or maybe it’s implied that “a trip” is 1 mile? Let’s check.
Actually, rereading: “They cover 1/5 of a trip on the first day.” Then “on the second day, they cover 3/4 of the distance they did on the first day.”
So if the first day was 1/5 of the trip, then second day is 3/4 of that 1/5.
So:
(3/4) × (1/5) = 3/20
But the question asks “how many miles”? Hmm. Since no total trip length is given, perhaps we assume the whole trip is 1 mile? That’s common in such problems.
If the whole trip is 1 mile, then:
First day: 1/5 mile
Second day: 3/4 of 1/5 = 3/20 mile
✔ So they rode 3/20 miles on the second day.
*(If the trip was longer, we’d need that info — but since it’s not given, 3/20 mile is the answer based on standard interpretation.)*
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Final Answer:
1. 4 feet
2. 2 bushels
3. 4/9 minutes
4. 7/15 ounces
5. 3/20 miles
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Problem 1:
> The closet in the foyer is 5/6 feet high, and the closet in the bedroom is 24/5 times as high as the closet in the foyer. What is the height of the closet in the bedroom?
We multiply:
(5/6) × (24/5)
Look for numbers we can cancel across the numerator and denominator.
- The 5 in the top left cancels with the 5 in the bottom right → both become 1.
- The 6 in the bottom left and 24 in the top right → 24 ÷ 6 = 4, so 24 becomes 4 and 6 becomes 1.
Now it’s:
(1/1) × (4/1) = 4
✔ So the bedroom closet is 4 feet high.
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Problem 2:
> Orlando picked 3/8 bushel of corn last year. This year he collected 16/3 times the yield. How much corn did he harvest this year?
Multiply:
(3/8) × (16/3)
Cancel:
- 3 on top left and 3 on bottom right → both become 1.
- 8 on bottom left and 16 on top right → 16 ÷ 8 = 2, so 16 becomes 2, 8 becomes 1.
Now:
(1/1) × (2/1) = 2
✔ He harvested 2 bushels this year.
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Problem 3:
> Perry’s Earth-Day speech lasted 7/9 minutes. Marcia’s speech was 4/7 times longer than Perry’s. How many minutes did Marcia speak for?
Wait — “times longer” here likely means “multiplied by”, not “added”. In math problems like this, unless specified otherwise, “X times longer” usually means multiply.
So:
(7/9) × (4/7)
Cancel:
- 7 on top left and 7 on bottom right → both become 1.
Left with:
(1/9) × (4/1) = 4/9
✔ Marcia spoke for 4/9 minutes.
*(Note: If “longer” meant addition, it would be 7/9 + (4/7)(7/9), but that’s more complex and not typical for this level. The context suggests multiplication.)*
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Problem 4:
> The bird feeder held 14/15 ounces of seeds in the morning. After a while, only 1/2 of the seeds remained. How many ounces were remaining?
This is straightforward: find half of 14/15.
Multiply:
(14/15) × (1/2)
Cancel:
- 14 and 2 → 14 ÷ 2 = 7, 2 ÷ 2 = 1
So:
(7/15) × (1/1) = 7/15
✔ 7/15 ounces remained.
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Problem 5:
> Mr. Thompson wants his daughters to ride a bike. They cover 1/5 of a trip on the first day. On the second day, they cover 3/4 of the distance from the first day. How many miles did they ride on the second day?
Wait — the problem doesn’t say how long the whole trip is! But looking again… it says “how many miles” — but no total distance is given. That must mean we’re just finding what fraction of the *whole trip* they rode on day two? Or maybe it’s implied that “a trip” is 1 mile? Let’s check.
Actually, rereading: “They cover 1/5 of a trip on the first day.” Then “on the second day, they cover 3/4 of the distance they did on the first day.”
So if the first day was 1/5 of the trip, then second day is 3/4 of that 1/5.
So:
(3/4) × (1/5) = 3/20
But the question asks “how many miles”? Hmm. Since no total trip length is given, perhaps we assume the whole trip is 1 mile? That’s common in such problems.
If the whole trip is 1 mile, then:
First day: 1/5 mile
Second day: 3/4 of 1/5 = 3/20 mile
✔ So they rode 3/20 miles on the second day.
*(If the trip was longer, we’d need that info — but since it’s not given, 3/20 mile is the answer based on standard interpretation.)*
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Final Answer:
1. 4 feet
2. 2 bushels
3. 4/9 minutes
4. 7/15 ounces
5. 3/20 miles
Parent Tip: Review the logic above to help your child master the concept of cross multiplication word problems worksheet.