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cross-multiply

[kraws-muhl-ti-plahy, kros-] /ˈkrɔsˈmʌl tɪˌplaɪ, ˈkrɒs-/
verb (used without object), cross-multiplied, cross-multiplying. Mathematics
1.
to remove fractions from an equation by multiplying each side by the common multiple of the denominators of the fractions of both sides.
Also, cross multiply.
Origin of cross-multiply
1950-1955
1950-55
Related forms
cross-multiplication [kraws-muhl-ti-pli-key-shuh n, kros-] /ˈkrɔsˌmʌl tɪ plɪˌkeɪ ʃən, ˈkrɒs-/ (Show IPA), cross multiplication, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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cross multiply in Science
cross-multiply  
To multiply the numerator of one of a pair of fractions by the denominator of the other.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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7
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