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: 15



Work Step by Step

LCD is 7. $-7+\frac{5}{7}=\frac{-7}{1}+\frac{5}{7}=\frac{-7\times7}{1\times7}+\frac{5}{7}=\frac{-49}{7}+\frac{5}{7}=\frac{-49+5}{7}=\frac{-44}{7}$
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.