Respuesta :

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