## Basic College Mathematics (10th Edition)

estimate: 6 exact: $5\frac{1}{2}$
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. $1\frac{7}{10}+3\frac{4}{5}=\frac{17}{10}+\frac{19}{5}=\frac{17}{10}+\frac{19\times2}{5\times2}=\frac{17}{10}+\frac{38}{10}=\frac{55}{10}=5\frac{5}{10}=5\frac{1}{2}$