Math Mom

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Math Mom

Hi, I am trying to help my sixth grader understand the concepts better behind fractional equations.  Can you tell me a simple way to explain why we invert when dividing fractions?

February 24, 2009, 3:24 pm by Mjhunt1234

division is the opposite of multiplication.  maybe that can help.

March 9, 2009, 3:55 pm by Kickcycle111

because we really can not divide fractions. we invert to do the opposite which is multiplication...
1/2 divide 3/4 is actually 1/2 divide 4/3 then we can cancell 2 and 4 out to get an answer of 2/3.
if you straight across multiply it you will get an answer of 4/6 then you can reduce it to 2/3.
Hope this helps...

March 26, 2009, 11:46 am by Guest

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