$$\left. \begin{array} { l } { 15 \frac { 2 } { 3 } - 20 \frac { 5 } { 6 } + 103 \frac { 4 } { 9 } } \end{array} \right.$$
$\frac{1769}{18} = 98\frac{5}{18} = 98.27777777777777$
