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#1 2006-12-01 08:15:09

lostmathmom
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Dividing Fractions

I am trying to help my daughter divide fractions  the problem is 2/3 divided by n = 3/4.  I am having a terrible time figuring it out and  of course she has no book for examples.  Can anyone help?  Thanks so much:)

#2 2006-12-01 08:24:18

pi man
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Re: Dividing Fractions

Dividing by a fraction is the same as muiltiplying by its inverse:

#3 2007-03-31 23:27:11

!mathfun
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Re: Dividing Fractions

for teaching, figuring it out like

(2/3) / n = (3/4)
(2/3) /= (3/4) *n
(2/3) / (3/4) = n
n= (2/3) / (3/4)
n= (2/3) * (4/3)
n= (2*4)/(3*3)
n= 8/9

#4 2007-04-01 09:55:35

justlookingforthemoment
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Award: Wink Sherlock

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Re: Dividing Fractions

Welcome to the forum, !mathfun and lostmathmom.

I'm moving this to the Help Me forum ... hopefully you'll still be able to find it. I'll leave a redirect.

Thanks guys, and have fun on the forum.

#5 2007-04-01 11:54:48

Stanley_Marsh
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Re: Dividing Fractions



all you need to do , is to put the divisor up side down and multiply

Last edited by Stanley_Marsh (2007-04-01 11:56:37)


Numbers are the essence of the Universe

#6 2008-06-02 19:03:30

iamthepro
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Re: Dividing Fractions

(2/3) / (3/4) = [(2/3) / (3/4)] x [(4/3) / (4/3)] = (2/3) x (4/3)  = 8/9

#7 2010-07-17 14:18:27

Recey
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Re: Dividing Fractions

Here is a guide http://hubpages.com/hub/Adding-and-subtracting-fraction

#8 2010-07-18 00:23:58

bobbym
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Re: Dividing Fractions


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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