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: 40



Work Step by Step

LCD is 60. $-\frac{1}{3}-\frac{1}{4}+\frac{2}{5}=-\frac{1\times20}{3\times20}-\frac{1\times15}{4\times15}+\frac{2\times12}{5\times12}=-\frac{20}{60}-\frac{15}{60}+\frac{24}{60}=\frac{-20-15+24}{60}=\frac{-11}{60}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.