Calculate: (6)/(8)+(5)/(8)

Expression: $\frac{ 6 }{ 8 }+\frac{ 5 }{ 8 }$

Write all numerators above the common denominator

$\frac{ 6+5 }{ 8 }$

Add the numbers

$\begin{align*}&\frac{ 11 }{ 8 } \\&\begin{array} { l }1 \frac{ 3 }{ 8 },& 1.375\end{array}\end{align*}$