Elementary Algebra

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

Chapter 2 - Real Numbers - 2.1 - Rational Numbers: Multiplication and Division - Problem Set 2.1 - Page 48: 61


(-$\frac{3}{8}$) $\times$ ($\frac{13}{14}$) $\times$ (-$\frac{12}{9}$) = $\frac{13}{28}$

Work Step by Step

(-$\frac{3}{8}$) $\times$ ($\frac{13}{14}$) $\times$ (-$\frac{12}{9}$) = Multiply the numerators by each other, and multiply the denominators by each other $\frac{(-3) \times 13 \times (-12)}{8\times14\times9}$ = Factor the numerator and the denominator $\frac{(-3) \times 13 \times (-2) \times 2 \times 3 }{2\times2\times2\times2\times7\times3\times3}$ = Cancel the common factors between the numerator and the denominator to obtain : $\frac{(-13)\times (-1)}{2\times2\times7}$ = $\frac{13}{2\times2\times7}$ = $\frac{13}{28}$
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