Answer
$-\frac{1}{8}$
Work Step by Step
$\frac{3}{4}-\frac{7}{8}=\frac{3\times2}{4\times2}-\frac{7}{8}=\frac{6}{8}-\frac{7}{8}=\frac{6-7}{8}=\frac{6+(-7)}{8}=\frac{-1}{8}=-\frac{1}{8}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 1 - Section 1.5 - Subtracting Real Numbers - Exercise Set - Page 45: 28
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