Problems With Fractions (Addition And Subtraction)
Mathematics is an interesting subject once you know the basics. Fractions are also used to indicate a part of a whole number or a ratio between two numbers. Do you have a hard time adding and subtracting fractions? Have no worries; take the quiz below to help you better your skills. All the best!
Questions and Answers
- 1.
Gabriella bought a pile of bricks to build a brick wall. Yesterday, she used 5/8 of the brick pile. Tomorrow, she plans to use another \dfrac{1}{4}174start fraction, 1, divided by, 4, end fraction1/4 of the original brick pile
- A.
3/8
- B.
1/8
- C.
14/8
Correct Answer
B. 1/8Explanation
Yesterday, Gabriella used 5/8 of the brick pile. This means that there are 3/8 of the original pile remaining. Tomorrow, she plans to use 1/4 of the original pile. If we multiply 3/8 by 1/4, we get 3/32. This means that tomorrow Gabriella will use 3/32 of the original pile. To find out how much of the original pile will remain after tomorrow, we subtract 3/32 from the current amount of 3/8. This gives us 3/8 - 3/32 = 9/32. Therefore, the answer is 9/32, which can be simplified to 1/8.Rate this question:
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- 2.
Sarah had 2/5 of a pizza left. She ate 1/3 of what was left. How much of the original pizza did Sarah eat?
- A.
2/15
- B.
1/5
- C.
1/6
- D.
3/8
Correct Answer
A. 2/15Explanation
To find how much of the original pizza Sarah ate, multiply 2/5 by 1/3.
Multiply the numerators: 2 * 1 = 2
Multiply the denominators: 5 * 3 = 15
The fraction of the original pizza Sarah ate is 2/15.
So, Sarah ate 2/15 of the original pizza.Rate this question:
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- 3.
Horacio is working on his science fair project about the heights of fifth graders. His data are shown on the left graph.How much taller is Lucia than Horacio?
- A.
3/4
- B.
1/12
Correct Answer
B. 1/12 -
- 4.
A chef uses 3/4 of a cup of sugar for one cake and 2/3 of a cup for another cake. How much sugar does the chef use in total?
Correct Answer
17/12 cups, 17/12Explanation
Find a common denominator for 3/4 and 2/3, which is 12.
Convert 3/4 to 9/12 (since 3/4 = 9/12)
Convert 2/3 to 8/12 (since 2/3 = 8/12)
Add the fractions: 9/12 + 8/12 = 17/12 cups.
So, the chef uses 17/12 cups of sugar in total.Rate this question:
- 5.
Suppose that the first team member in a 333-person relay race must run 2 \dfrac{1}{4}2 1/42, start fraction, 1, divided by, 4, end fraction laps, the second team member must run 1 \dfrac{1}{2}1 1/2 1/ 1, start fraction, 1, divided by, 2, end fraction laps, and the third team member must run 3 \dfrac{5}{8}3 5/85/8 3, start fraction, 5, divided by, 8, end fraction laps. How many laps in all must each team run?
- A.
27/8
- B.
24/2
- C.
24/4
- D.
7 3/8
Correct Answer
D. 7 3/8 -
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Aug 28, 2024Quiz Edited by
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Nov 26, 2015Quiz Created by
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