Answer
$\frac{15x}{4}$
Work Step by Step
$\frac{21x^2}{10y}\div\frac{14x}{25y}=\frac{21x^2}{10y}\times\frac{25y}{14x}=\frac{21x^2\times 25y}{10y\times 14x}=\frac{525x^2y}{140xy}=\frac{525x^2y\div35xy}{140xy\div35xy}=\frac{15x}{4}$
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 247: 61
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