Answer
$\frac{5}{18}$
Work Step by Step
$\frac{13}{18}-\frac{4}{9}=\frac{13}{18}-\frac{4\times2}{9\times2}=\frac{13}{18}-\frac{8}{18}=\frac{13-8}{18}=\frac{5}{18}$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 1 - Introduction to Algebraic Expressions - 1.3 Fraction Notation - 1.3 Exercise Set - Page 27: 71
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