Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 7 - Algebraic Fractions - 7.3 - Adding and Subtracting Algebraic Fractions - Problem Set 7.3 - Page 292: 69



Work Step by Step

By inspection, we see that the LCM of the denominators is $n(n-1)$. Therefore, we create a common denominator using this LCM and obtain: $\frac{2}{n-1}-\frac{3}{n}$ =$\frac{n(2)-3(n-1)}{n(n-1)}$ =$\frac{2n-3n+3}{n(n-1)}$ =$\frac{-n+3}{n(n-1)}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.