Re: How to get Mathematica to actually *add* fractions?
- To: mathgroup at smc.vnet.net
- Subject: [mg40539] Re: How to get Mathematica to actually *add* fractions?
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Wed, 9 Apr 2003 20:26:27 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <b70ck5$8al$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi, ?Together Together[expr] puts terms in a sum over a common denominator, and cancels \ factors in the result. Regards Jens cdj wrote: > > Hi, > > Like the subject says, but take for example: > > (2/(3x)) + (6/x) + (x/(x + 3)) > > Sending to the kernel simply gives: > > 20/3x + x/(3+x) > > What I wanted/hoped for was the common-denominator version: > > (3x^2 + 20x + 60)/(3x(x+3)) > > Is there any way to get Mathematica to give the one-denominator > version of sums of fractions? > > thanks, > > cdj