## Basic College Mathematics (10th Edition)

$1\frac{17}{24}$
$\frac{5}{6}+\frac{7}{8}$ = $\frac{5\times4}{6\times4}+\frac{7\times3}{8\times3}$ (LCM of 6 & 8 is 24) = $\frac{20}{24}+\frac{21}{24}$ = $\frac{20+21}{24}$ (addition of fractions with same denominator) = $\frac{41}{24}$ = $1\frac{17}{24}$