Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.4" was replaced by "(4/10)".

Step  1  :

            2
 Simplify   —
            5

Equation at the end of step  1  :

  2
  —
  5

Step  2  :

                 2
 Divide  12  by  —
                 5

Final result :

  30