\[\boxed{\mathbf{348\ (348).}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\boxed{\mathbf{348}\mathbf{\ (341).}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ \left( \frac{4}{5} + \frac{4}{7} \right) \cdot \left( 7\frac{11^{\backslash 3}}{12} - 5\frac{7^{\backslash 4}}{9} \right) =\]
\[= \frac{28 + 20}{35} \cdot \left( 7\frac{33}{36} - 5\frac{28}{36} \right) =\]
\[= \frac{48}{35} \cdot 2\frac{5}{36} =\]
\[2)\ \frac{4}{5} + \frac{4}{7} \cdot \left( 7\frac{11^{\backslash 3}}{12} - 5\frac{7^{\backslash 4}}{9} \right) =\]
\[= \frac{4}{5} + \frac{4}{7} \cdot \left( 7\frac{33}{36} - 5\frac{28}{36} \right) =\]
\[= \frac{4}{5} + \frac{4}{7} \cdot 2\frac{5}{36} =\]