40 балов Помогите срочно.........

$2 \frac{1}{6} -1 \frac{5}{6} +3 \frac{2}{6} -2 \frac{5}{6} =\\ =(2-1+3-2) + ( \frac{1-5+2-5}{6} ) = 2 - \frac{7}{6} = \frac{12}{6} - \frac{7}{6} = \frac{5}{6}$

либо по действиям:

$1) 2 \frac{1}{6} -1 \frac{5}{6} =1 \frac{7}{6} -1 \frac{5}{6} = \frac{2}{6} \\ 2) \frac{2}{6} +3 \frac{2}{6} =3 \frac{4}{6} \\ 3) 3\frac{4}{6} -2 \frac{5}{6} =2 \frac{10}{6} -2 \frac{5}{6} = \frac{5}{6}$