(2,727:(-0,9)+1,9*(-5,3+1,58)):4,8=-2,10375
2,727:(-0,9)=-3,03
-5,3+1,58=-3,72
1,9*(-3,72)=-7,068
-3,03-7,068=-10,098
-10,098:4,8=-2,10375