(-2,5+2 1/3)*(-5 1/7)+ 1 1/3 * (-5/28)

Question

(-2,5+2 1/3)*(-5 1/7)+ 1 1/3 * (-5/28)

Answer 1

Решаем по действиям:
1) -2 1/2+2 1/3=-5/2+7/3=-15/6+14/6=-1/6
2)(-1/6)*(-36/7)=6/7
3)1 1/3*(-5/28)=4/3*(-5/28)=-5/21
4)6/7-5/21=18/21-5/21=17/21