Answer
$\frac{19}{40}$
Work Step by Step
LCD is 40.
$\frac{5}{8}-\frac{3}{20}=\frac{5\times5}{8\times5}-\frac{3\times2}{20\times2}=\frac{25}{40}-\frac{6}{40}=\frac{25-6}{40}=\frac{19}{40}$
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 - Exercise Set - Page 273: 32
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