150,88:(3,2*2,3)-60,27:(4,1*1,4)
150,88:(3,2*2,3)-60,27:(4,1*1,4)= 150,88:7,36 - 60,27:5.74=20.5 - 10.5=10
150,88:7,36-60,27:5,74=20,5-10,5=10