Answer
$\frac{16b + 9 a^2}{60a^4b^6}$
Work Step by Step
$\frac{4}{15a^4b^5} + \frac{3}{20a^2b^6}$
$= \frac{4\times 4\times b + 3\times 3 \times a^2}{60a^4b^6}$
$= \frac{16b + 9 a^2}{60a^4b^6}$
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
Published by
Pearson
ISBN 10:
0321969359
ISBN 13:
978-0-32196-935-4
Chapter 6 - Section 6.2 - Adding and Subtracting Rational Expressions - 6.2 Exercises - Page 383: 47
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