Question

даю 20 баллов........​

Answer 1

Ответ:

Пошаговое объяснение:

$1)4*\frac{4}{21} =\frac{16}{21}$

$2)6*\frac{7}{18} =\frac{7}{3} =2\frac{1}{3}$

$3)\frac{5}{14} *28=10$

$4)5\frac{3}{5} *\frac{3}{7} =\frac{28}{5} *\frac{3}{7} =\frac{12}{5} =2.4$

$5)\frac{3}{8} *2\frac{2}{3} =\frac{3}{8}*\frac{8}{3} =1$

6)$2\frac{2}{15} *1\frac{9}{16} =\frac{32}{15} *\frac{25}{16} =\frac{10}{3} =3\frac{1}{3}$

$7)8\frac{3}{4} *1\frac{3}{14} =\frac{35}{4} *\frac{17}{14} =\frac{85}{8} =10\frac{5}{8}$

$8)1\frac{7}{8} *1\frac{1}{15} *1\frac{7}{16} =\frac{15}{8} *\frac{16}{15} *\frac{23}{16} =\frac{23}{8} =2\frac{7}{8}$

$9)\frac{24}{25} *1\frac{5}{8} *\frac{35}{39} =\frac{24}{25} *\frac{13}{8} *\frac{35}{39}=\frac{7}{5} =1.4$