Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 7 - Section 7.4 - Adding and Subtracting Rational Expressions with Different Denominators - Exercise Set: 33

Answer

$\frac{9b-4}{5b(b-1)}$

Work Step by Step

$\frac{4}{5b}$+$\frac{1}{b-1}$= $\frac{4(b-1)}{5b(b-1)}$+$\frac{1*5b}{(b-1)5b}$= $\frac{4(b-1)+5b}{5b(b-1)}$= $\frac{4b-4+5b}{5b(b-1)}$= $\frac{9b-4}{5b(b-1)}$
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