\[\boxed{\mathbf{461\ (461).}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ \left( 2\frac{13}{48} + 2\frac{5^{\backslash 4}}{12} \right)\ :3\frac{3}{4} - 9\frac{3}{4}\ :12 =\]
\[= 4\frac{13 + 20}{48}\ :\frac{15}{4} - \frac{39}{4} \cdot \frac{1}{12} =\]
\[= \frac{5^{\backslash 4}}{4} - \frac{13}{16} = \frac{20 - 13}{16} = \frac{7}{16}\]