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: 25

Answer

-19/72

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 5/18 by 4/4 and 13/24 by 3/3 to obtain: $\frac{20}{72}$-($\frac{39}{72}$)=-$\frac{19}{72}$.
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