90,3-56,12:(50-31,6)*5,7= помогите плиз

Question

90,3-56,12:(50-31,6)*5,7= помогите плиз

Answer 1

50-31,6=18,4

56,12:18,4=3,05

3,05*5,7=17,385

90,3-17,385=72,915

Answer 2

1)50-31,6=18,4
2)56,12:18,4=3,05
3)3,05*5,7=17,385
4)90,3-17,385=72,915