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: 12



Work Step by Step

LCD is 20. $5-\frac{y}{20}=\frac{5}{1}-\frac{y}{20}=\frac{5\times20}{1\times20}-\frac{y}{20}=\frac{100}{20}-\frac{y}{20}=\frac{100-y}{20}$
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