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Math and Arithmetic
Algebra
Percentages, Fractions, and Decimal Values

What is the formula for multipling fractions?

Answer

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Wiki User
September 04, 2007 1:15AM

When dividing fractions, multiply by the inverse of the fraction.

That is, a/b divided by x/y = a/b times y/x = ay/bx

For example,

2/5 divided by 3 = 2/5 x 1/3 = 2/15

2/5 divided by 1/3 = 2/5 x 3/1 = 6/5

5 divided by 3 = 5/1 x 1/3 = 5/3

5 divided by 1/3 = 5/1 x 3/1 = 15/1 (= 15)