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cross-multiply

[ kraws-muhl-ti-plahy, kros- ]

verb (used without object)

, Mathematics.
, cross-mul·ti·plied, cross-mul·ti·ply·ing.
  1. to remove fractions from an equation by multiplying each side by the common multiple of the denominators of the fractions of both sides.


cross-multiply

  1. To multiply the numerator of one of a pair of fractions by the denominator of the other.


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Other Words From

  • cross-mul·ti·pli·ca·tion cross mul·ti·pli·ca·tion [kraws, -muhl-ti-pli-, key, -sh, uh, n, kros, -], noun

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Word History and Origins

Origin of cross-multiply1

First recorded in 1950–55

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cross-modalitycross my heart and hope to die