Question

распишитее пжлст действие

Answer 1

$2 frac{5}{18}-5 frac{1}{12}=2+ frac{5}{18}-(5+ frac{1}{12})= 2+ frac{5}{18}-5- frac{1}{12}= 2-5+ frac{5}{18}- frac{1}{12}=$

$=-3+frac{5}{6*3}-frac{1}{6*2} =-3+frac{1}{6}*frac{5}{3}-frac{1}{6}*frac{1}{2} =-3+frac{1}{6}*(frac{5}{3}-frac{1}{2})=$

$=-3+frac{1}{6}*(frac{5*2}{3*2}-frac{3*1}{3*2}) =-3+frac{1}{6}*(frac{5*2-3*1}{3*2}) =-3+frac{1}{6}*(frac{10-3}{6})=$

$=-3+frac{1}{6}*frac{7}{6}=-3+ frac{1*7}{6*6}=-3+ frac{7}{36}=-3* frac{1}{1}+ frac{7}{36}=$

$=(-3)* frac{36}{36}+ frac{7}{36}= frac{(-3)*36}{36}+ frac{7}{36}= frac{(-3)*36+7}{36}= frac{-108+7}{36}= frac{-101}{36}=$

$=- frac{101}{36}=- frac{2*36+29}{36}=-( frac{2*36}{36}+ frac{29}{36})= -( frac{2*36}{1*36}+ frac{29}{36})= -( frac{2}{1}+ frac{29}{36})=$

$=-(2+ frac{29}{36})=-(2frac{29}{36})=-2frac{29}{36}$