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: 62



Work Step by Step

By inspection, we see that the LCM of the denominators is $18y$. Therefore, we create a denominator using this LCM and obtain: $\frac{11}{9y}-\frac{8}{15y}$ =$\frac{5(11)-3(8)}{45y}$ =$\frac{55-24}{45y}$ =$\frac{31}{45y}$
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