Question #6ebe9

1 Answer
EZ as pi
Sep 22, 2016

Rules for fraction multiplication

Explanation:

The rules for multiplying fractions are as follows:

  1. Change all mixed numbers to improper fractions.

  2. Cancel (simplify) wherever possible with common factors - any numerator with any denominator as long as there are x signs between them

  3. #("top x top")/("bottom x bottom")#

  4. Simplify if necessary.

For example..

#2 1/4 xx 2 2/3 xx 5/12 xx 7/15#

#= 9/4 xx 8/3xx 5/12xx7/15#

#= cancel9^(cancel3)/cancel4 xx cancel8^(cancel2)/cancel3xx cancel5/cancel12^(cancel4 ^2)xx7/cancel15^3#

#= 7/(2xx3)#

#= 7/6#

#= 1 1/6#

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