\[\boxed{\mathbf{983}\mathbf{.}\mathbf{\ }}\]
\[\frac{5^{\backslash 8}}{6} = \frac{40}{48};\ \ \ \ \ \frac{5^{\backslash 6}}{8} = \frac{30}{48};\ \ \ \]
\[\frac{7^{\backslash 3}}{16} = \frac{21}{48};\ \ \ \ \frac{9^{\backslash 2}}{24} = \frac{18}{48};\ \ \ \ \]
\[\frac{10^{\backslash 4}}{12} = \frac{40}{48};\ \ \ \ \frac{10^{\backslash 16}}{3} = \frac{160}{48};\ \]
\[\frac{5^{\backslash 12}}{4} = \frac{60}{48}.\]