Ratio part

Definition

One of the numbers in a ratio, representing a number of equal shares rather than necessarily the actual quantity.

Used by AQA, Edexcel and OCR

Specification N11 · Paper 1, Paper 2, Paper 3

One of the equal-sized units represented by the numbers in a ratio.
To find the whole in ratio parts, add every term of the ratio.
Revise: Fractions in Ratios

Specification N11 · Paper 1, Paper 2, Paper 3

One of the numbers in a ratio; it represents a share of the comparison rather than necessarily one object.

1
For a ratio part, use the sum of all the ratio numbers as the denominator—not just the other part.
2
Add both ratio parts before choosing the denominator; in $2:3$ , the whole contains $5$ parts, not .

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Always divide by the number of ratio parts belonging to the known quantity—not automatically by the total number of parts.

Specification 5.01c · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)

3

State the fraction of the whole, not merely the corresponding ratio part, and simplify the fraction where possible.