Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapters 1-7 - Cumulative Review Exercises - Page 529: 3

Answer

estimate: 6 exact: $5\frac{1}{2}$

Work Step by Step

Estimate Round each number' $1\frac{7}{10}\approx2$ $3\frac{4}{5}\approx4$ Solve $2+4=6$ Exact Solve by rewriting mixed number as improper fractions. Use the least common multiple as the denominator. $1\frac{7}{10}+3\frac{4}{5}=\frac{17}{10}+\frac{19}{5}=\frac{17}{10}+\frac{19\times2}{5\times2}=\frac{17}{10}+\frac{38}{10}=\frac{55}{10}=5\frac{5}{10}=5\frac{1}{2}$
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