Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Section 1.2 - Fractions in Algebra - Exercise Set: 56

Answer

$\frac{4}{7}$

Work Step by Step

$\frac{12}{7} \div $ 3 Change division to multiplication. Invert $\frac{3}{1}$ and write its reciprocal. $\frac{12}{7}$ * $\frac{1}{3}$ = $\frac{12*1}{7*3}$ = $\frac{12}{21}$ Since 3 is the greatest common factor of 12 and 21, divide numerator and denominator by 3 So, $\frac{4*3}{7*3}$ = $\frac{4}{7}$
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