3/5*(2 целых 2/3:3 целых 1/5) = (1/3_5/16) :(1/6_1/8) =

1) [latex]2 \frac{2}{3} : 3 \frac{1}{5} = \frac{8}{3} : \frac{16}{5} = \frac{8}{3} * \frac{5}{16} = \frac{8 * 5}{3 * 16} = \frac{5}{3 * 2} = \frac{5}{6} [/latex] 2) [latex] \frac{3}{5} * \frac{5}{6} = \frac{3 * 5}{5 * 6} = \frac{3}{6} = \frac{1}{2} [/latex]