ответ: 1)= -27/4×16/3-13/3×43/13=-9×4-14=-50
2)=23/12×(-24/11)=23×2/11=46/11
3)=27/7×(-7/3)-8/9×(-15/8)=19+1/3×5=-9+5/3=-22/3
4)=3
ответ: 1)= -27/4×16/3-13/3×43/13=-9×4-14=-50
2)=23/12×(-24/11)=23×2/11=46/11
3)=27/7×(-7/3)-8/9×(-15/8)=19+1/3×5=-9+5/3=-22/3
4)=3