\[\boxed{\mathbf{688\ (688)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 24\ :6 = 4\]
\[x\ :3 = 4 \Longrightarrow x = 12\]
\[y\ :5 = 4 \Longrightarrow y = 20\]
\[Ответ:\ \ x = 12;\ \ y = 20.\]
\[2)\ 24\ :\frac{1}{9} = 24 \cdot 9 = 216\]
\[x\ :\frac{1}{8} = 216 \Longrightarrow x = 216 \cdot \frac{1}{8} =\]
\[= 27\]
\[y\ :\frac{1}{36} = 216 \Longrightarrow y = 216 \cdot \frac{1}{36} =\]
\[= 6\]
\[Ответ:\ x = 27;\ \ y = 6.\]