Maths dictionary

What is a ratio?

A ratio compares two or more quantities. It shows how much of one thing there is for each amount of another.

Definition

A ratio compares two or more quantities. It shows how much of one thing there is for each amount of another.

Example

If there are 8 boys and 12 girls, the ratio of boys to girls is 8:12, which simplifies to 2:3.

Tip

Simplify a ratio like a fraction: divide every part by the same number.

Practise it

Worksheets: Simplifying ratios (Grade 6)
Online maths practice

Quick check: try these

Work each one out on paper, then tap the question to see the answer.

Simplify the ratio 24 : 24 =
Answer: 1:1
Simplify the ratio 15 : 9 =
Answer: 5:3
Simplify the ratio 20 : 20 =
Answer: 1:1
Simplify the ratio 8 : 6 =
Answer: 4:3

Learn it in depth

Ratio is part of Ratio and Proportion for Class 6: notes, formulas, solved examples with every step, common mistakes and ten practice questions with answers. Want a teacher to go through it with you? See Class 6 maths tuition.

Related words

Fraction, Percentage