Выполните действия 1)-14,3 * 0,6 + 5,7 * (-1,4); 2) (3,4 - 5)*(-4,12 + 4,04); 3) 5/9 * (-3 5/6) - (-3 5/7) * 3/52; 4) (2 1/3 - 3 1/4)*(2 3/4 - 9,95).

-14.3×0.6+5.7×(-1.4)= -8,58-7.98=-16,56
(3.4-5)×(-4.12+4.04)=-1.6×(-0.8)=1.28
5/9×(-3 5/6)-(-3. 5/7)×3/52=5/9×(-23/6)-(-26/7)×3/52=-115/

1) -14,3*0,6+5,7*(-1,4)=-8,58-7,98=-16,56
2) (3,4-5)(-4,12+4,04)=-1,6*(-0,08)=0,128
3) 5/9(-3 5/6)-(-3 5/7)*3/52=-115/54+3/14=-2 7/54+3/14=
    =-2 49/378+81/378=-1 427/378+81/378=-1 346/378=-1 173/189
4) (2 1/3-3 1/4)(2 3/4-9,95)=(2 4/12-3 3/12)(2,75-9,95)=(2 4/12-2 15/12)*(-7,2)=
=-11/12*(-72/10)=66/10=6,6