NumberKS3 / GCSE

Fraction of an amount - calculation

Find a fraction of an amount using a short calculation.

  • Split the whole into the number of equal parts shown by the denominator.
  • Divide the amount by the denominator to find one part.
  • Multiply one part by the numerator to find the required fraction.

Example 1

Find one part

Find of 40.

Divide to find one part, then multiply

Example 2

Use the same method

Find of 63.

Divide to find one part, then multiply

Remember
Divide by the denominator (bottom), then multiply by the numerator (top).

Your turn

Question 1

Find of 24.

Check answer
Question 2

Find of 52.

Check answer
Question 3

Find of 63.

Check answer
Question 4

Find of 72.

Check answer
Question 5

Find of 120.

Check answer
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