90,21/5+73,17*8-52,22/1,6+43,7/0,4 = 680,0145
1)90,21/5=18,042
2)73,17*8=585,36
3)52,22/1,6=32,6375
4)43,7/0,4=109,25
5)18.042+585.36-32.6375+109.25=680,0145
