(503,44 : 12,4 - 225,36 : 7,2)* ( 1,6905 : 0,49)
(503,44:12,4- 225,36:7,2)*(1,6905:0,49) = 32,085
1)503,44 : 12,4=40,6
2)225,36: 7,2=31,3
3)40.6-31.3=9,3
4)1,6905 :0,49=3,45
5)9.3*3.45=32,085