Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 4 - Section 4.4 - Adding and Subtracting Like Fractions, Least Common Denominator, and Equivalent Fractions - Exercise Set - Page 265: 99


a) equivalent b) equivalent c) not equivalent d) equivalent

Work Step by Step

Cross multiply to find if equivalent. a) $\frac{10}{15}\overset?=\frac{2}{3}$ $10\times3\overset?=15\times2$ $30\overset?=30\checkmark$ b) $\frac{40}{60}\overset?=\frac{2}{3}$ $40\times3\overset?=60\times2$ $120\overset?=120\checkmark$ c) $\frac{16}{20}\overset?=\frac{2}{3}$ $16\times3\overset?=20\times2$ $48\overset?=40\ X$ d) $\frac{200}{300}\overset?=\frac{2}{3}$ $200\times3\overset?=300\times2$ $600\overset?=600\checkmark$
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