Services & ResourcesWolfram ForumsMathGroup Archive

[Date Index] [Thread Index] [Author Index]

How to get Mathematica to actually *add* fractions?

• To: mathgroup at smc.vnet.net
• Subject: [mg40529] How to get Mathematica to actually *add* fractions?
• From: a_cjones at hotmail.com (cdj)
• Date: Wed, 9 Apr 2003 01:33:41 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

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

• Follow-Ups:
  • Re: How to get Mathematica to actually *add* fractions?
    • From: "German Buitrago A." <gerbual@col2.telecom.com.co>
  • Re: How to get Mathematica to actually *add* fractions?
    • From: Dr Bob <majort@cox-internet.com>