Answer
$\dfrac{1}{10}$
Work Step by Step
The given expression, $
-\dfrac{3}{10}+\dfrac{2}{5}
$, simplifies to
\begin{array}{l}\require{cancel}
-\dfrac{3}{10}+\dfrac{4}{10}
\\\\=
\dfrac{-3+4}{10}
\\\\=
\dfrac{1}{10}
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 1 - Introduction to Algebraic Expressions - 1.7 Multiplication and Division of Real Numbers - 1.7 Exercise Set - Page 58: 117
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