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Grade 5 Fractions of Whole Numbers

Grade 5 · Building confidence · 12 questions · Version PG-OOE1N3-1RQ7

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1.What is 6/10 of 30?
2.What is 9/10 of 120?
3.What is 2/6 of 90?
4.What is 5/6 of 120?
5.What is 8/10 of 100?
6.What is 2/4 of 40?
7.What is 1/5 of 55?
8.What is 3/5 of 45?
9.What is 2/4 of 88?
10.What is 3/5 of 15?
11.What is 6/8 of 32?
12.What is 3/4 of 12?

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 9
  1. What is 6/10 of 30?18
  2. What is 9/10 of 120?108
  3. What is 2/6 of 90?30
  4. What is 5/6 of 120?100
  5. What is 8/10 of 100?80
  6. What is 2/4 of 40?20
  7. What is 1/5 of 55?11
  8. What is 3/5 of 45?27
  9. What is 2/4 of 88?44
  10. What is 3/5 of 15?9
  11. What is 6/8 of 32?24
  12. What is 3/4 of 12?9

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.