Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 2 - Section 2.4 - Signed Fractions - Exercises - Page 118: 10



Work Step by Step

Make the fractions similar using their LCD, which is $18$: $\\=-\dfrac{2(2)}{9(2)}-\left(+\dfrac{1(9)}{2(9)}\right) \\=-\dfrac{4}{18}-\left(\dfrac{9}{18}\right) \\=\dfrac{-4-9}{18} \\=-\dfrac{13}{18}$
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.