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 - Page 273: 18



Work Step by Step

LCD is 18. $\frac{7x}{18}+\frac{2x}{9}=\frac{7x}{18}+\frac{2x\times2}{9\times2}=\frac{7x}{18}+\frac{4x}{18}=\frac{7x+4x}{18}=\frac{11x}{18}$
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