$$\left. \begin{array} { l } { ( - \frac { 5 } { 6 } ) ^ { 3 } \times ( - \frac { 5 } { 6 } ) ^ { 7 } \times ( - \frac { 5 } { 6 } ) ^ { 2 } } \end{array} \right.$$
$\frac{244140625}{2176782336} = 0.11215665478461509$
