2 целых 6/7мых : на 1 целых 3/7мых

[latex]2 frac{6}{7} :1 frac{3}{7} =frac{2*7+6}{7} : frac{1*7+3}{7} = frac{20}{7} : frac{10}{7} =frac{20}{7} * frac{7}{10} =frac{20:10}{7:7} * frac{7:7}{10:10} = \ \ \ = frac{2}{1} * frac{1}{1} =frac{2*1}{1*1}= frac{2}{1} =2[/latex]