Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "5.1" was replaced by "(51/10)".

Step  1  :

            51
 Simplify   ——
            10

Equation at the end of step  1  :

  51
  —— • 10
  10

Step  2  :

Final result :

  51