-1/12*3/5-2/3:(-10/9)
-1/12 * 3/5 - 2/3 : (-10/9) = -1/20 + 2/3 * 9/10 = 3/5 - 1/20 = = 12/20 - 1/20 = 11/20 = 0,55
-1/20 + 6/10 = -1/20+12/20= 11/20