Ответ:
103/126
Пошаговое объяснение:
(2,5-2 1/3)*(-5 1/7 +1 1/3 :(-5.6))=
=(2 1/2 - 2 1/3) * (-5 1/7 + 4/3 :(-56/10)=
=1/6 * (-5 1/7 -5/21)= 1/6 * (-103/21)= 103/126
1) (2,5-2 1/3)=(2 1/2 - 2 1/3)=1/6
2)1 1/3 :(-5.6)=4/3 :(-56/10)=-103/21
3) -5 1/7+ (-103/21)=- 103/21
4) 1/6 * (-103/21)= 103/126