College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Chapter P Review - Exercises: 12


(a) $\frac{25}{2}$ (b) $\frac{72}{49}$

Work Step by Step

(a) $\displaystyle \frac{30}{7}\div\frac{12}{35}=\frac{30*35}{7*12}=\frac{5*5}{1*2}=\frac{25}{2}$ (b) $\displaystyle \frac{30}{7}*\displaystyle \frac{12}{35}=\frac{30*12}{7*35}=\frac{6*12}{7*7}=\frac{72}{49}$
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