Prealgebra (7th Edition)

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: 33

Answer

$\frac{33}{56}$

Work Step by Step

LCD is 56. $\frac{5}{7}-\frac{1}{8}=\frac{5\times8}{7\times8}-\frac{1\times7}{8\times7}=\frac{40}{56}-\frac{7}{56}=\frac{40-7}{56}=\frac{33}{56}$
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