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Fractions of Whole Numbers

Grade 4 · Building confidence · 12 questions · Version PG-1SGURX5-F2ZU

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1.What is 3/8 of 16?
2.What is 4/8 of 40?
3.What is 4/10 of 20?
4.What is 6/8 of 32?
5.What is 2/4 of 52?
6.What is 1/4 of 52?
7.What is 4/6 of 42?
8.What is 2/5 of 25?
9.What is 1/2 of 38?
10.What is 3/4 of 16?
11.What is 4/6 of 48?
12.What is 1/2 of 42?

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 19
  1. What is 3/8 of 16?6
  2. What is 4/8 of 40?20
  3. What is 4/10 of 20?8
  4. What is 6/8 of 32?24
  5. What is 2/4 of 52?26
  6. What is 1/4 of 52?13
  7. What is 4/6 of 42?28
  8. What is 2/5 of 25?10
  9. What is 1/2 of 38?19
  10. What is 3/4 of 16?12
  11. What is 4/6 of 48?32
  12. What is 1/2 of 42?21

Worked example

3/4 of 20 = 15. Divide 20 by 4, then multiply 5 by 3.

Common mistake

Dividing by the numerator instead of the denominator.

Helpful hint

Divide by the bottom number, multiply by the top number.