Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "6.5" was replaced by "(65/10)".

Step  1  :

            13
 Simplify   ——
            2 

Equation at the end of step  1  :

  13
  ——
  2 

Step  2  :

                 13
 Divide  26  by  ——
                 2 

Final result :

  4