Пошаговое объяснение:
1) 0,375·(-1 5/7)·4/9 ·2 1/3=3/8 ·(-12/7)·4/9 ·7/3=-4/(2·3)=-2/3
2) -1 2/11 +(-18 1/3)·(-1,8)·(-12/13)=-1 2/11 +(-55/3)·(-9/5)·(-12/13)=-1 2/11 -(11·3·12)/13=-1 26/143 -30 66/143=-31 92/143
