Question

Пмогите пожалуста!
запишите номера верных равенств

$2* frac{1}{3} - frac{1}{4}= frac{1}{6} [tex] frac{11}{14}:3 frac{1}{7}=0,25$

$1,75-2 frac{1}{3} = frac{7}{12}$$1,6:( frac{2}{3} : frac{5}{6} =4$

Answer 1

Верно:
$frac{11}{14}:3 frac{1}{7}= frac{11}{14}: frac{22}{7}= frac{11}{14}cdot frac{7}{22}= frac{1}{4}=0,25$

Неверно

$2cdot frac{1}{3}- frac{1}{4}= frac{8}{12}- frac{3}{12}= frac{5}{12} neq frac{1}{6} \ \ 1,75-2 frac{1}{3} textless 0 neq frac{7}{12} \ \ 1,6:( frac{2}{3}: frac{5}{6})= 1,6:( frac{2}{3}cdot frac{6}{5})= 1,6:( frac{4}{5})=2 neq 4$