Выполните умножение 1)4/27*9/16 2)5 3/5*1 4/21 3)13/24*32

Решите задачу:

$\frac{4}{27} * \frac{9}{16} = \frac{4*9}{27*16} = \frac{36}{432} = \frac{1*36}{12*36} = \frac{1}{12}$

$5 \frac{3}{5} *1 \frac{4}{21} = \frac{28}{5} * \frac{25}{21} = \frac{28*25}{5*21} = \frac{700}{105} = \frac{20*35}{3*35} = \frac{20}{3} =6 \frac{2}{3}$

$\frac{13}{24} *32= \frac{13*32}{24*1} = \frac{416}{24} = \frac{52*8}{3*8} = \frac{52}{3} =17 \frac{1}{3}$