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GCSE Mathematics · key term
A method for solving an equality of fractions: if , then .
Specification R7 · Paper 1, Paper 2, Paper 3
Revise: ProportionCross-multiplication gives a systematic algebraic method. Each approach expresses the same central idea: equal ratios describe the same proportion.
Show the common multiplier, unitary step or cross-multiplication; an unsupported answer may not gain all available method marks.
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Used by Edexcel