Помогите! 4568:56-357:4/2·5=?

Question

Помогите!
4568:56-357:4/2·5=?

Answer 1

1) 4/2 * 5 = 4/2*10/2 =40/2=20
2)357:20=17,85
3) 4568:56=81,57
4) 81,57- 17,85 = 63,72