Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 7 - Algebraic Fractions - Chapters 1-7 Cumulative Review Problem Set - Page 324: 18



Work Step by Step

Using the reciprocal rule to change the division sign to a multiplication sign and then canceling out similar factors, we obtain: $\frac{4x}{5y}\div\frac{12x^{2}}{10y^{2}}$ =$\frac{4x}{5y}\times\frac{10y^{2}}{12x^{2}}$ =$\frac{1x}{5y}\times\frac{10y^{2}}{3x^{2}}$ =$\frac{1x}{1y}\times\frac{2y^{2}}{3x^{2}}$ =$\frac{1}{1}\times\frac{2y^{2-1}}{3x^{2-1}}$ =$\frac{1}{1}\times\frac{2y^{1}}{3x^{1}}$ =$\frac{2y}{3x}$
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