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

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