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Common unit — AQA GCSE Mathematics Definition | GradeGen

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Mathematics
Key terms
Common unit

GCSE Mathematics · key term

Common unit

Definition

One unit used for every quantity being compared, such as grams for both masses.

Used by AQA

How each exam board covers it

AQA GCSE Mathematics · 8300

Specification R4 · Paper 1, Paper 2, Paper 3

Revise: Ratio Notation

AQA Mathematics past papers

Exam tips

1
Convert quantities to a common unit before simplifying. Do not compare the numbers in 125 g : 2 kg as 125 : 2.

Related key terms

Equivalent ratio
Ratio
Simplest form

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