0,25:4+15,3:5+12,4:8+0,15:30=
в столбик спс
0.25/4 15.3/5 12.4/8 0.15/30
15 3.6 8 1.505 0.005
=0.08028 30 44
30 40
0 40
40
0
+0.08028 3.68028+ 5.18528+
3.6 1.505 0.005 =5.19028
3.68028 5.18528 5.19028