Вычислите: 2/3 * 2/5 4/3 * 5/7 3/10 * 3/10 3/4 * 7/5 5/7 * 9/11

[latex] frac{2}{3} * frac{2}{5} = frac{4}{15} [/latex][latex] frac{4}{3} * frac{5}{7} = frac{20}{21} [/latex][latex] frac{3}{10} * frac{3}{10} = frac{9}{100} = 0,09[/latex][latex] frac{3}{4} * frac{7}{5} = frac{21}{20} = ]1 frac{1}{20} = 1,05 [/latex][latex] frac{5}{7} * frac{9}{11} = frac{45}{77} [/latex]

2/3*2/5=4/154/3*5/7=20/213/10*3/10=3/1003/4*7/5=21/20=1 1/205/7*9/11=45/77