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Grade 5 Fractions of Whole Numbers

Grade 5 · Stretch challenge · 12 questions · Version PG-1CAA8DU-1865

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1.What is 7/10 of 20?
2.What is 1/6 of 36?
3.What is 3/4 of 120?
4.What is 2/5 of 20?
5.What is 2/3 of 57?
6.What is 1/4 of 12?
7.What is 1/3 of 30?
8.What is 4/5 of 10?
9.What is 2/5 of 110?
10.What is 1/3 of 93?
11.What is 3/4 of 28?
12.What is 1/3 of 48?

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 4
  1. What is 7/10 of 20?14
  2. What is 1/6 of 36?6
  3. What is 3/4 of 120?90
  4. What is 2/5 of 20?8
  5. What is 2/3 of 57?38
  6. What is 1/4 of 12?3
  7. What is 1/3 of 30?10
  8. What is 4/5 of 10?8
  9. What is 2/5 of 110?44
  10. What is 1/3 of 93?31
  11. What is 3/4 of 28?21
  12. What is 1/3 of 48?16

Worked example

5/6 of 42 = 35. Divide 42 by 6, then multiply 7 by 5.

Common mistake

Multiplying before dividing and creating unnecessary large numbers.

Helpful hint

Divide by the denominator first when it divides evenly.