Answer
$\dfrac{3}{8}$
Work Step by Step
Make the fractions similar using their LCD, which is $8$, to obtain:
$=\dfrac{3(2)}{4(2)}+\left(-\dfrac{3}{8}\right)
\\=\dfrac{6}{8} + \left(-\dfrac{3}{8}\right)
\\=\dfrac{6+(-3)}{8}
\\=\dfrac{3}{8}$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
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
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