Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 2 - Multiplying and Dividing Fractions - Test: 13

Answer

Multiply fractions by multiplying the numerators and multiplying the denominators. Divide two fractions by using the reciprocal of the divisor (the second fraction) and then changing division to multiplication.

Work Step by Step

Multiply fractions by multiplying the numerators and multiplying the denominators. For eg; $\frac{2}{3}$ * $\frac{1}{5}$ Now multiply numerators i.e. 2 * 1 = 2 and denominators =3 * 5 = 15 The multiplication result is $\frac{2}{15}$ Divide two fractions by using the reciprocal of the divisor (the second fraction) and then changing division to multiplication. For example : $\frac{5}{4}$ $\div$ $\frac{15}{4}$ = $\frac{5}{4}$ $\times$ $\frac{4}{15}$ = $\frac{1}{3}$
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