:((17,65- 9/1/4)*2,05 - 3,9* 2/5) :2.9

Question

:((17,65- 9/1/4)*2,05 - 3,9* 2/5) :2.9

Answer 1

1)17,65-9 1\4=17,65-9,25=8,4
2)8,4*2,05=17,22
3)3,9*2\5=3,9*0,4=1,56
4)17,22-1,56=15,66
5)15,66:2,9=5,4