3/7 : 5/8 2/3 : 4/7 4/5 : 3 1 целая 2/5 : 2/5

[latex] frac{3}{7} : frac{5}{8} = frac{3*8}{7*5} = frac{24}{35} [/latex][latex] frac{2}{3} : frac{4}{7} = frac{2*7}{3*4} = frac{7}{3*2} = frac{7}{6} = 1frac{1}{6} [/latex][latex] frac{4}{5} :3= frac{4}{5*3} = frac{4}{15} [/latex][latex]1 frac{2}{5} : frac{2}{5} = frac{7*5}{5*2} = frac{7}{2}= 3frac{1}{2} =3,5 [/latex]