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Maths · Years 3-4

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Fractions of amounts

Finding fractions of quantities, such as 1/4 of 20 or 3/4 of 12

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Try each question. If you're stuck, leave it and come back. The answer key is on the last page.
  1. 1

    1/4 of 20 = ___ 1/4 of 20 = ___

    Answer:
  2. 2

    1/2 of 18 = ___ 1/2 of 18 = ___

    Answer:
  3. 3

    What is 1/3 of 12? A) 3 B) 4 C) 6 D) 9

    Answer:
  4. 4

    1/2 of 14 = ___ 1/2 of 14 = ___

    Answer:
  5. 5

    3/4 of 12 = ___ 3/4 of 12 = ___

    Answer:
  6. 6

    What is 2/3 of 9? A) 3 B) 6 C) 7 D) 9

    Answer:
  7. 7

    True or false? 1/5 of 25 is 5. A) True B) False

    Answer:
  8. 8

    What is 3/5 of 20? A) 4 B) 8 C) 12 D) 15

    Answer:
  9. 9

    2/5 of 30 = ___ 2/5 of 30 = ___

    Answer:
  10. 10

    True or false? 3/8 of 16 is 6. A) True B) False

    Answer:

Answer key

Fractions of amounts · for parents and teachers

  1. 1

    5

    20 ÷ 4 = 5. One quarter of 20 is 5.

  2. 2

    9

    18 ÷ 2 = 9. Half of 18 is 9.

  3. 3

    4

    12 ÷ 3 = 4. One third of 12 is 4.

  4. 4

    7

    14 ÷ 2 = 7.

  5. 5

    9

    1/4 of 12 = 3, then 3 × 3 = 9. So 3/4 of 12 = 9.

  6. 6

    6

    1/3 of 9 = 3, then 3 × 2 = 6. So 2/3 of 9 = 6.

  7. 7

    True

    True. 25 ÷ 5 = 5. One fifth of 25 is 5.

  8. 8

    12

    1/5 of 20 = 4, then 4 × 3 = 12. So 3/5 of 20 = 12.

  9. 9

    12

    1/5 of 30 = 6, then 6 × 2 = 12. So 2/5 of 30 = 12.

  10. 10

    True

    True. 1/8 of 16 = 2, then 2 × 3 = 6. So 3/8 of 16 = 6.