Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-8" was replaced by "^(-8)".

(2): "6.5" was replaced by "(65/10)".

Step  1  :

            13
 Simplify   ——
            2 

Equation at the end of step  1  :

  13
 (——)-8
  2 

Step  2  :

Final result :

   1 • 28
  ———————
  1 • 138