Elementary Algebra

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

Chapter 2 - Real Numbers - 2.1 - Rational Numbers: Multiplication and Division - Problem Set 2.1: 33

Answer

$\dfrac{7}{5}$

Work Step by Step

RECALL: $\dfrac{a}{b} \div \dfrac{c}{d} = \dfrac{a}{b} \cdot \dfrac{d}{c}$ Use the rule above to obtain: $\\=\dfrac{7}{9} \cdot \dfrac{9}{5}$ Cancel the common factors to obtain: $\require{cancel} \\=\dfrac{7}{\cancel{9}} \cdot \dfrac{\cancel{9}}{5} \\=\dfrac{7}{5}$
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