Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1 - Introduction to Algebraic Expressions - 1.5 Addition of Real Numbers - 1.5 Exercise Set: 53

Answer

$-\frac{1}{15}$

Work Step by Step

To add two numbers with different signs, we subtract their absolute values ($\frac{2}{5} - \frac{1}{3} = \frac{6}{15} - \frac{5}{15} = \frac{1}{15}$) and take the sign of the larger absolute value, which is negative ($-\frac{1}{15}$)
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