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Fractions of Whole Numbers

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

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1.What is 1/2 of 16?
2.What is 5/6 of 48?
3.What is 3/5 of 30?
4.What is 1/2 of 24?
5.What is 1/2 of 4?
6.What is 1/2 of 50?
7.What is 1/6 of 12?
8.What is 2/8 of 40?
9.What is 1/8 of 32?
10.What is 1/3 of 57?
11.What is 4/5 of 20?
12.What is 2/3 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 10
  1. What is 1/2 of 16?8
  2. What is 5/6 of 48?40
  3. What is 3/5 of 30?18
  4. What is 1/2 of 24?12
  5. What is 1/2 of 4?2
  6. What is 1/2 of 50?25
  7. What is 1/6 of 12?2
  8. What is 2/8 of 40?10
  9. What is 1/8 of 32?4
  10. What is 1/3 of 57?19
  11. What is 4/5 of 20?16
  12. What is 2/3 of 42?28

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.