Question

2 3/4: (1 1/2 - 2/5)+(3/4+5/6):3 1/6 СРОЧНО, МНОГО БАЛЛОВ!!!

Answer 1

$1) 1 frac{1}{2} - frac{2}{5} = 1frac{5}{10} - frac{4}{10} =1 frac{1}{10} \ 2) frac{3}{4} + frac{5}{6} = frac{9}{12} + frac{10}{12} = frac{19}{12} \ 3)2 frac{3}{4} : 1frac{1}{10} = frac{11}{4} : frac{11}{10} = frac{11}{4}* frac{10}{11}= frac{5}{2} =2 frac{1}{2} \ 4) frac{19}{12} :3 frac{1}{6} =frac{19}{12} : frac{19}{6} =frac{19}{12} * frac{6}{19} = frac{1}{2} \ 5)2 frac{1}{2} + frac{1}{2} =3$

Ответ: 3