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: 4



Work Step by Step

Make the fractions similar using their LCD, which is $9$: $=\dfrac{2(3)}{3(3)}+\left(-\dfrac{7}{9}\right) \\=\dfrac{6}{9}+\left(-\dfrac{7}{9}\right) \\=\dfrac{6-7}{9} \\=-\dfrac{1}{9}$
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