Solution - Simplification or other simple results

Step  1  :

            2
 Simplify   —
            1

Equation at the end of step  1  :

  24
  —— • 2
  4 

Step  2  :

            6
 Simplify   —
            1

Equation at the end of step  2  :

  6 • 2

Step  3  :

Final result :

  12