Вычислить: 1) 2 (целых) 1/3*3/4 2) 3 (целых) 2/5*5/7 3) 2/13*4(целых) 1/3 4) 3/16*5(целых) 1/3

1-7/4 2-17/7 3-2/3 4-3/3

[latex]1)2 \frac{1}{3} * \frac{3}{4} = \frac{7}{3} * \frac{3}{4} = \frac{7*3}{3*4} = \frac{7}{4} =1.75\\ \\ 2)3 \frac{2}{5} * \frac{5}{7} = \frac{17*5}{5*7} = \frac{17}{7} \\ \\ 3) \frac{2}{13} *4 \frac{1}{3} = \frac{2*13}{13*3} = \frac{2}{3} \\ \\ 4) \frac{3}{18} *5 \frac{1}{3} = \frac{3}{18} * \frac{16}{3} = \frac{3*16}{18*3} = \frac{8}{9} [/latex]