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: 27



Work Step by Step

Make the fractions similar using their LCD, which is $8$, to obtain: $=\dfrac{3(2)}{4(2)}+\left(-\dfrac{3}{8}\right) \\=\dfrac{6}{8} + \left(-\dfrac{3}{8}\right) \\=\dfrac{6+(-3)}{8} \\=\dfrac{3}{8}$
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