Answer
$\frac{a-b}{a^2}$
Work Step by Step
To subtract two fractions with different denominator, we need to first find equivalent fractions with the same denominator. Then subtract the numerators.
$\frac{a}{a^2}-\frac{b}{a^2}=\frac{a-b}{a^2}$
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter R - Section R.5 - Rational Expressions - R.5 Exercises - Page 48: 45
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