Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 7 - Section 7.3 - Solving Percent Problems with Proportions - Exercise Set - Page 493: 50



Work Step by Step

Convert to like fractions. $\frac{7}{12}=\frac{7\times2}{12\times2}=\frac{14}{24}$ $\frac{5}{8}=\frac{5\times3}{8\times3}=\frac{15}{24}$ To add or subtract fractions with the same denominator, add or subtract the numerators and keep the denominator. $\frac{14}{24}-\frac{15}{24}=-\frac{1}{24}$
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