Answer
$\frac{1}{4}$
Work Step by Step
$-\frac{1}{5}+\frac{9}{20}$
$=\frac{9}{20}-\frac{1}{5}$
$=\frac{9\times1}{20\times1}-\frac{1\times4}{5\times4}$
$=\frac{9}{20}-\frac{4}{20}$
$=\frac{5}{20}$
$=\frac{1}{4}$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 4 - Section 4.5 - Adding and Subtracting Unlike Fractions - Practice - Page 267: 3
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