cross multiplication


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cross multiplication

[¦krȯs ‚məl·tə·plə′kā·shən]
(mathematics)
Multiplication of the numerator of each of two fractions by the denominator of the other, as when eliminating fractions from an equation.
References in periodicals archive ?
When no integer multiples exist (type d) students often rely on either cross multiplication or an incorrect additive strategy (Cramer et al.
Baker's percentages for all the other ingredients are calculated using the cross multiplication or fractions method.