\[\boxed{\ \mathbf{1124\ (1124)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[12\frac{3}{13} - 4\frac{7}{13} = 11\frac{16}{13} - 4\frac{7}{13} =\]
\[= 7\frac{9}{13}\]
\[1\frac{5}{13} + 3\frac{11}{13} = 4\frac{16}{13} = 5\frac{3}{13}\]
\[7\frac{9}{13} - 5\frac{3}{13} = 2\frac{6}{13}\]
\[3)\ \left( 16\frac{5}{11} + 5\frac{6}{11} \right) \cdot 3,245 =\]
\[= 71,39\]
\[16\frac{5}{11} + 5\frac{6}{11} = 21\frac{11}{11} = 22\]
\[4)\ (4,8 - 3,762)\ :0,06 = 17,3\]
\[6)\ (6,3 - 4,2)\ :(6,3 + 4,2) = 0,2\]
\[7)\ 0,125 \cdot 16 + 28\ :0,56 =\]
\[= 2 + 50 = 52\]
\[8)\ 0,128\ :0,4 - 0,126\ :0,6 =\]
\[= 0,11\]
\[\boxed{\mathbf{1124}\mathbf{.}\mathbf{\ }}\]
\[= \frac{55 - 34}{10} = \frac{21}{10} = 2\frac{1}{10}\]