Elementary Algebra

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

Chapter 7 - Algebraic Fractions - 7.4 - Addition and Subtraction of Algebraic Fractions and Simplifying Complex Fractions - Problem Set 7.4 - Page 299: 7



Work Step by Step

We first create common denominators to obtain: $ \frac{4}{n(n+1)} -\frac{4(n+1)}{n(n+1)}$ We now use the distributive property to find: $\frac{-4n}{n(n+1)} \\ \frac{-4}{(n+1)}$
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