Finding percentages of quantities example
22 October 2026

Understanding how to find percentages of quantities is a key skill for the 11+ maths exam. This example shows a clear way to break down the problem, making it easier for your child to follow each step.

Worked example
Find 25% of 40
First, change 25% to a fraction. 25% means 25 out of 100, so 25% = 25/100.
Next, simplify 25/100. 25/100 = 1/4.
Now, find 1/4 of 40. Divide 40 by 4.
40 ÷ 4 = 10
The correct answer is 10.
Now your child can spot when a percentage can be turned into a simple fraction, and use this to solve similar questions. The next practice question will help build confidence with this type of maths.com uk problem.



