(30,8+27,4)*0,9/(31,64-12,24)*1,2

Question

(30,8+27,4)*0,9/(31,64-12,24)*1,2

Answer 1

1.(30,8+27,4)=58,2
2.(31,64-12,24)=19,4
3.58,2*0,9=52,38
4.52,38/19,4=2,7
5.2,7*1,2=3,24

Answer 2

3,24 объяснение нужно?