0,5632:5,12+42,56:3,8-(11-3,9:1,5)=
0,5632:5.12+42.56:3.8-(11-3.9:1.5)=8.71 1)3.9:1.5=2.6 2)11-2.6=8.4 3)0.5632:5.12=0.11 4)42.56:3.8=11.2 5)0.11+11.2=11.31 6)11.31-2.6=8.71