The Math Forum

Ask Dr. Math - Questions and Answers from our Archives
Associated Topics || Dr. Math Home || Search Dr. Math

Solving a Fractional Equation

Date: 3/10/96 at 20:3:24
From: Larrieux Emmanuel
Subject: I have a little question!

Hi Swat Team!
Can you help me with this?

           2   2
M + N     M + N     2M
----- +  ------- - ------ =
           2   2
N - M     N - M     M - N

Thanks a lot!


        Emmanuel Larrieux

Date: 3/28/96 at 23:35:46
From: Doctor Jodi
Subject: Re: I have a little question !

Hi there Emmanuel!

For this problem you need a common denominator.

I'd suggest using N^2 - M^2  (that is, N squared minus M squared) 
as the common denominator.

(N - M) times (N + M) will give you N^2 - M^2

So will (M - N) * (-1) * (N + M)

Can you take it from here?

Write us back if you need more help.

-Doctor Jodi,  The Math Forum

Associated Topics:
High School Equations, Graphs, Translations

Search the Dr. Math Library:

Find items containing (put spaces between keywords):
Click only once for faster results:

[ Choose "whole words" when searching for a word like age.]

all keywords, in any order at least one, that exact phrase
parts of words whole words

Submit your own question to Dr. Math

[Privacy Policy] [Terms of Use]

Math Forum Home || Math Library || Quick Reference || Math Forum Search

Ask Dr. MathTM
© 1994- The Math Forum at NCTM. All rights reserved.