Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "1.25" was replaced by "(125/100)".

Step  1  :

            5
 Simplify   —
            4

Equation at the end of step  1  :

  5
  — • 12
  4

Step  2  :

Final result :

  15