Задание 4188
Скрыть
$$0,21 : \frac{3}{8} + \frac{11}{25} =\frac{21}{100} *\frac{8}{3} +\frac{11}{25}=$$ $$=\frac{7*2}{25} +\frac{11}{25}=\frac{25}{25}=1$$
$$0,21 : \frac{3}{8} + \frac{11}{25} =\frac{21}{100} *\frac{8}{3} +\frac{11}{25}=$$ $$=\frac{7*2}{25} +\frac{11}{25}=\frac{25}{25}=1$$