4*(-4/7-2/3)-5/12:8.3/4

Question

4*(-4/7-2/3)-5/12:8.3/4

Answer 1

1) - 16/7-8/3=104/21=4.16/21
2) 5/12:8.3/4=5/12:35/4=20/420=1/21
3) 4.16/21-1/21=4.15/21