$\frac{ 41 }{ 5 }+3 \frac{ 5 }{ 8 }$
Convert the mixed number to an improper fraction$\frac{ 41 }{ 5 }+\frac{ 29 }{ 8 }$
Add the fractions$\begin{align*}&\frac{ 473 }{ 40 } \\&\begin{array} { l }11 \frac{ 33 }{ 40 },& 11.825\end{array}\end{align*}$