Question

выполните умножение
5/7*1/3=
3/4*1/6=
7/15*5/7=
3/7*5/6
15/16*8/25=
1/2*2/3=

Answer 1

$1) frac{5}{7} * frac{1}{3} = frac{5*1}{7*3} = frac{5}{21} \ \ 2) frac{3}{4} * frac{1}{6} = frac{3*1}{4*6} = frac{1*1}{4*2} = frac{1}{8} \ \ 3) frac{7}{15} * frac{5}{7} = frac{7*5}{15*7} = frac{1*1}{3*1} = frac{1}{3} \ \ 4) frac{3}{7} * frac{5}{6} = frac{3*5}{7*6} = frac{1*5}{7*2} = frac{5}{14} \ \ 5) frac{15}{16} * frac{8}{25} = frac{15*8}{16*25} = frac{3*1}{2*5} = frac{3}{10} \ \ 6) frac{1}{2} * frac{2}{3} = frac{1*2}{2*3} = frac{1*1}{1*3} = frac{1}{3}$