Answer:
7.9315
Step-by-step explanation:
1.no =7/3±85/16±2/7
=2665/336
=7.9315
2no =86/9-17/5
=227/45
=6.15556
3no= 45/7×53/4
=2385/28
=85.1785
4no=67/4÷5/2
=67/4×2/5
=134/20
=67/10
=6.7