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: 29

Answer

-1/3

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 -2/13 by 3/3 to obtain: -$\frac{6}{39}$-($\frac{7}{39}$)=-$\frac{13}{39}=-1/3$.
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