1) (-4.8-(-1.2)) = 4.8-1.2 = -3.6
2) 3.6:0.6 = 36:6 = 6
3) 2 4/9:(-3 2/3) = 22/9:(-11/3) = 22/9:(-33/9) = 22/9•(-9/33) = 22/1:(-1/33) = -2/3
4) (-3 3/4)•0.4 = (-3 3/4)•4/10 = (-15/4)•4/10 = (-3/1)• 1/2 = (-3/2) = (-1 1/2)
5) 6 +(-2/3) = 18/3-2/3 = 16/3 = 5 1/3
6) 5 1/3-(-1 1/2) = 16/3-(-3/2) = 32/6-(-9/6) = 41/6 = 6 5/6
• это умножить