## Basic College Mathematics (9th Edition)

9$\frac{1}{10}$
5$\frac{2}{5}$ + 3$\frac{7}{10}$ Convert the mixed fraction into improper fraction 5$\frac{2}{5}$ = $\frac{27}{5}$ 3$\frac{7}{10}$ = $\frac{37}{10}$ The least common multiple of 5 and 10 is 10. Rewrite all the fractions as fractions with a least common denominator of 10. $\frac{54}{10}$ + $\frac{37}{10}$ = $\frac{91}{10}$ $\frac{91}{10}$ is improper fraction so convert it into mixed fraction $\frac{91}{10}$ = 9$\frac{1}{10}$