Elementary Algebra

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

Chapter 2 - Real Numbers - 2.2 - Addition and Subtraction of Rational Numbers - Problem Set 2.2: 37

Answer

$\frac{4x+3y}{xy}$.

Work Step by Step

In order to add or subtract fractions, we start by making a common denominator (bottom of the fraction). Thus, we multiply 3/x by y/y and 4/y by x/x to obtain: $\frac{3y}{xy}$+($\frac{4x}{xy}$)=$\frac{4x+3y}{xy}$.
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