Выполните действия: 4) (3 1/2:4 2/3+4 2/3:3 1/2)*4 4/5.

( 3 [latex] ( 3 \frac{1}{2} : 4 \frac{2}{3} + 4 \frac{2}{3} : 3 \frac{1}{2} ) * 4 \frac{4}{5} [/latex] [latex]1) 3 \frac{1}{2} : 4 \frac{2}{3} = \frac{7}{2} * \frac{3}{14} = \frac{3}{4} [/latex] [latex]2) 4 \frac{2}{3} : 3 \frac{1}{2} = \frac{14}{3} * \frac{2}{7} = \frac{4}{3} [/latex] [latex]3) \frac{3}{4} + \frac{4}{3} = \frac{9+16}{12} = \frac{25}{12} [/latex] [latex]4) \frac{25}{12} * 4 \frac{4}{5} = \frac{25}{12} * \frac{24}{5} = 10[/latex]