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Fraction of a Number: Grade 5 math

Pupils calculate unit and non-unit fractions of quantities and discrete amounts. The worksheet develops fluency in dividing by the denominator and multiplying by the numerator.

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What this covers

Fraction of a Number is taught in Grade 5 (age 10 to 11) as a topic to introduce. It sits in the Fractions strand.

Worked example

Find 38 of 48.

  1. Divide the amount by the denominator: 488 = 6.
  2. Multiply the result by the numerator: 6 × 3 = 18.

Answer: 18

Difficulty scale

The sheet generator offers five difficulty settings for this topic.

  1. Unit fractions (12, 13, 14, 15) of small numbers with no remainders
  2. Non-unit fractions with small denominators (e.g. 23 of 18, 34 of 24)
  3. Non-unit fractions of larger amounts up to 200
  4. Fraction of an amount with units of measure (money, metres, kilograms)
  5. Reverse problems: finding the whole given a fraction of the amount

Common mistakes

  • Multiplying by the denominator and dividing by the numerator
  • Forgetting to multiply by the numerator after calculating the unit fraction value

Curriculum links

Indicative matches to Common Core State Standards. Check wording and codes against the official document.

  • 5.NF.B.4 Multiply a fraction by a whole number or another fraction and compute rectangular areas with fractional sides.

Sample sheet and answers

Six questions at the level's usual difficulty. Open the editor to change, add or regenerate any of them.

Fraction of a Number

Grade 5 math

Qs
6
Marks
12
NameDateScore / 12
1.
Find 25 of 25.
[2]
2.
Find 56 of 24.
[2]
3.
Find 58 of 64.
[2]
4.
Find 25 of 15.
[2]
5.
Find 810 of 100.
[2]
6.
Find 24 of 32.
[2]

Answer key

  1. 1025 ÷ 5 = 5; 5 × 2 = 10
  2. 2024 ÷ 6 = 4; 4 × 5 = 20
  3. 4064 ÷ 8 = 8; 8 × 5 = 40
  4. 615 ÷ 5 = 3; 3 × 2 = 6
  5. 80100 ÷ 10 = 10; 10 × 8 = 80
  6. 1632 ÷ 4 = 8; 8 × 2 = 16