Question

4) (- 2 2/9 + (- 3 5/6)) + (- 4 + (- 1, 2))
Помогите решить срочно

Answer 1

$( - 2 \frac{2}{9} + ( - 3 \frac{5}{6} )) + ( - 4 + ( - 1.2)) = - 2 \frac{2}{9} - 3 \frac{5}{6} - 4 - 1.2 = - 2 \frac{4}{18} - 3\frac{15}{18} - 5.2 = - 5 \frac{19}{18} - 5.2 = - 6 \frac{1}{18} - 5 \frac{1}{5} = - 6 \frac{5}{90} - 5 \frac{18}{90} = - 11 \frac{23}{90}$