Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.2 - Operations with Real Numbers and Simplifying Algebraic Expressions - Exercise Set - Page 27: 79

Answer

$\dfrac{9}{14}$

Work Step by Step

Recall: $\frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c}$ Thus, $-\frac{1}{2} \div \left(-\frac{7}{9}\right) \\=-\frac{1}{2} \times \left(-\frac{9}{7}\right) \\=\frac{9}{14}$
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