Prealgebra (7th Edition)

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

Chapter 4 - Section 4.4 - Adding and Subtracting Like Fractions, Least Common Denominator, and Equivalent Fractions - Exercise Set - Page 261: 33



Work Step by Step

$\frac{9}{12}$ - $\frac{7}{12}$-$\frac{10}{12}$ = $\frac{9-7-10}{12}$ =$\frac{-8}{12}$ =-$\frac{4\times 2}{4\times3}$ = -$\frac{2}{3}$
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