Math Is Fun Forum

multiplying fractions

Guest

math

multiply denominater to denominater. multiply numerater to numerater.:dizzy this could be confusing;)

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: math

Hi multiplying fractions;

Sure is. I multiply numerator times numerator and then denominator times denominator.

Welcome to the forum.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: math

Here are 5 fractions multiplied together.

1   3   5   7   9
-   -    -   -   -
9   7   5   3   1

Now in this case you can see that the top and the bottom will be the same answer
because the numbers are all the same except backwards order.
So the answer is 1 / 1.   
One over one is just 1.
You can cross out the same numbers on the top and the bottom of the multiplied fractions.
If you cross out everything, you are left with 1 over 1, not zero over zero.

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igloo myrtilles fourmis