ratio notation
What ratio notation means in Mathematics GCSE, as defined for AQA, Pearson Edexcel.
Definitions of ratio notation
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Reference: Pearson Edexcel
A way of writing a comparison of parts of the same kind using a colon, so 12 : 18 means twelve of one thing for every eighteen of another.
Compares quantities of the same kind using a colon, for example 3 : 5.
Topics that use ratio notation
- Ratio, proportion and rates of change (AQA GCSE)
- Ratio, proportion and rates of change (Pearson Edexcel GCSE)
Related terms
- compound interest
- Compound Measure
- compound unit
- constant of proportionality
- Density
- direct proportion
- equality of ratios
- inverse proportion
Using ratio notation in the exam
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