Calculate: 5 (3)/(4)+15 (7)/(8)

Expression: $5 \frac{ 3 }{ 4 }+15 \frac{ 7 }{ 8 }$

Convert the mixed number to an improper fraction

$\frac{ 23 }{ 4 }+15 \frac{ 7 }{ 8 }$

Convert the mixed number to an improper fraction

$\frac{ 23 }{ 4 }+\frac{ 127 }{ 8 }$

Add the fractions

$\begin{align*}&\frac{ 173 }{ 8 } \\&\begin{array} { l }21 \frac{ 5 }{ 8 },& 21.625\end{array}\end{align*}$