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2007-01-04 07:48:47 · 2 answers · asked by ms.sagittarius1989 1 in Science & Mathematics Mathematics

2 answers

a/b=c/d, then a*d=b*c

2007-01-04 07:52:10 · answer #1 · answered by supersonic332003 7 · 0 0

cross multiplication

2007-01-04 15:56:14 · answer #2 · answered by ? 2 · 0 0

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