Question

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

Answer 1

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

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

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