Question

Выполните умножение:

Answer 1

а)14/45
б)24/27
в)18/5×25/12=9×5/6= 45/6=7,5
г)30/7×14/5=12
д)21/8×4/21=1/2
е)6/7×49/18=7/3=2 1/3

Answer 2

Сам

Answer 3

Спс*

Answer 4

$frac{7}{9}* frac{2}{5}= frac{7*2}{9*5}= frac{14}{45}$
$frac{12}{13}* frac{26}{27} = frac{24}{27}$
$3 frac{3}{5}*2 frac{1}{12} = frac{18}{5}* frac{25}{12}= frac{15}{2}=7 frac{1}{2}$
$4 frac{2}{7}*2 frac{4}{5} = frac{30}{7}* frac{14}{5} = 12$
$2 frac{5}{8} * frac{4}{21}= frac{21}{8}* frac{4}{21}= frac{4}{8}= frac{1}{2}$
$frac{6}{7} *2 frac{13}{18} = frac{6}{7}* frac{49}{18}= frac{7}{3} =2 frac{1}{3}$

Answer 5

Спасибо:*

Answer 6

Пож