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 1.7 - Multiplication and Division of Real Numbers - Exercise Set: 12

Answer

-7

Work Step by Step

Multiply across the numerators and denominators to find the product. Opposite signs make a negative answer while same signs make a positive answer. $\frac{1}{3}(-21)=-\frac{1\times21}{3\times1}=-\frac{21}{3}=-7$
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