Вычислите (1/6 + 1/8 ) * 4/7 (2/3-1/9):5/64целых 1/4 * 1 целую 3/5 : 3 целых 2/5 P.S /= это дробь

[latex]\left(\cfrac{1}{6}+\cfrac{1}{8}\right)\cdot\cfrac{4}{7}=\cfrac{7}{24}\cdot\cfrac{4}{7}=\cfrac{1}{6}[/latex] [latex]\left(\cfrac{2}{3}-\cfrac{1}{9}\right)\cdot\cfrac{6}{5}=\cfrac{5}{9}\cdot\cfrac{6}{5}=\cfrac{2}{3}[/latex] [latex]\cfrac{17}{4}\cdot\cfrac{8}{5}\cdot\cfrac{5}{17}=2[/latex]

[latex]( \frac{1}{6}+ \frac{1}{8})\cdot \frac{4}{7} =( \frac{4}{24}+ \frac{3}{24})\cdot \frac{4}{7} =\frac{7}{24}\cdot \frac{4}{7} =\frac{1}{6} [/latex] [latex] (\frac{2}{3} - \frac{1}{9} ): \frac{5}{6} = (\frac{6}{9} - \frac{1}{9} )\cdot\frac{6}{5} =\frac{5}{9} \cdot\frac{6}{5} =\frac{6}{9} =\frac{2}{3} [/latex][latex]4 \frac{1}{4} \cdot 1 \frac{3}{5} : 3 \frac{2}{5} = \frac{17}{4} \cdot \frac{8}{5} : \frac{17}{5} = \frac{17}{4} \cdot \frac{8}{5} \cdot \frac{5}{17} =2[/latex]