выполните действия 1) 15.3:(-1.7) 2) -20.7:(-9) 3) -7/17:(-49/34) 4)1 2/9:(-7 1/3 ) 5) -5.6:1 2/5 6)-4/9:(-1.6) 7) 0.1:(-1/12) 8)-0.18:1 4/5
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2) -20.7:(-9) = 2.3;
3) -7/17:(-49/34) = 2/7;
4)1 2/9:(-7 1/3 ) = 11/9 : (-22/3) = - 1/6;
5) -5.6:1 2/5 = - 5.6 : 1.4 = - 56 : 14 = - 4;
6)-4/9:(-1.6) = -4/9 : (- 16/10) = 5/18;
7) 0.1:(-1/12) = 1/10 • (- 12) = -1.2;
8)-0.18:1 4/5 = - 0.18 : 1.8 = - 1.8 : 18 = - 0.1