Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Section 1.8 - Exponents and Order of Operations - Exercise Set: 68

Answer

-$\frac{1}{5}$

Work Step by Step

$\frac{\frac{3}{5}-\frac{7}{10}}{\frac{1}{2}}$ First multiply $\frac{3}{5}$ by $\frac{2}{2}$ so it has a denominator of 10 $\frac{\frac{6}{10}-\frac{7}{10}}{\frac{1}{2}}$ Then subtract $\frac{-\frac{1}{10}}{\frac{1}{2}}$ Then change the division to multiplication of the reciprocal of the denominator -$\frac{1}{10}$$\times$$\frac{2}{1}$ Then multiply -$\frac{2}{10}$ Then reduce by 2 -$\frac{1}{5}$
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