Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "3.1" was replaced by "(31/10)".

Step  1  :

            31
 Simplify   ——
            10

Equation at the end of step  1  :

  31
  —— • 10
  10

Step  2  :

Final result :

  31