1 целая 1/3 : 4/5 - 4/5 х 2 целых 1/12

[latex]1 \frac{1}{3}: \frac{4}{5} - \frac{4}{5} *2 \frac{1}{12} = \frac{4}{3} * \frac{5}{4} - \frac{4}{5} * \frac{25}{12} = \frac{1}{3} *5- \frac{5}{3} = \frac{1}{3} *5*1= \frac{5}{3} =1 \frac{2}{3} [/latex]