Question

Решите!!!Плиз!!!Срочно!!! 1 1/4*(-2 2/3)+4/5*2 11/12-1 1/6:21/22 20, БАЛЛОВ ДАЮ!!!

Answer 1

$1 \frac{1}{4} *(-2 \frac{2}{3} )+ \frac{4}{5}*2 \frac{11}{12} -1 \frac{1}{6} : \frac{21}{22} = \frac{5}{4} *(- \frac{8}{3}) + \frac{4}{5} * \frac{35}{12} - \frac{7}{6} * \frac{22}{21} =- \frac{10}{3}+ \frac{7}{3}$$- \frac{11}{9} =-1-3 \frac{2}{3} =-4 \frac{2}{3}$