Answer
a) $-\frac{36}{55}$
b) $-\frac{44}{45}$
Work Step by Step
a)
$xy=-\frac{4}{5}\times\frac{9}{11}=-\frac{36}{55}$
b)
$x\div y=-\frac{4}{5}\div \frac{9}{11}=-\frac{4}{5}\times\frac{11}{9}=-\frac{44}{45}$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 4 - Section 4.3 - Multiplying and Dividing Fractions - Exercise Set - Page 248: 75
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