Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2006-11-30 09:15:09

lostmathmom
Member
Registered: 2006-11-30
Posts: 1

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:)

Offline

#2 2006-11-30 09:24:18

pi man
Member
Registered: 2006-07-06
Posts: 251

Re: Dividing Fractions

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

Offline

#3 2007-03-31 01:27:11

!mathfun
Member
Registered: 2007-03-31
Posts: 1

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

Offline

#4 2007-03-31 11:55:35

justlookingforthemoment
Moderator
Registered: 2005-05-26
Posts: 2,161

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.

Offline

#5 2007-03-31 13:54:48

Stanley_Marsh
Member
Registered: 2006-12-13
Posts: 345

Re: Dividing Fractions

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

Offline

#6 2008-06-01 21:03:30

iamthepro
Member
Registered: 2008-06-01
Posts: 1

Re: Dividing Fractions

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

Offline

#7 2010-07-16 16:18:27

Recey
Guest

Re: Dividing Fractions

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

#8 2010-07-17 02:23:58

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,771

Re: Dividing Fractions


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Offline

Board footer

Powered by FluxBB