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:)
Dividing by a fraction is the same as muiltiplying by its inverse:
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)
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.
all you need to do , is to put the divisor up side down and multiply
Last edited by Stanley_Marsh (2007-03-31 13:56:37)
Numbers are the essence of the Universe
(2/3) / (3/4) = [(2/3) / (3/4)] x [(4/3) / (4/3)] = (2/3) x (4/3) = 8/9
Here is a guide http://hubpages.com/hub/Adding-and-subtracting-fraction
These pages seem stronger than that one:
Welcome to the forum!
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.