Solution - Simplification or other simple results

Step  1  :

            1
 Simplify   —
            3

Equation at the end of step  1  :

         9    1
  (56 • ——) • —
        14    3

Step  2  :

             9
 Simplify   ——
            14

Equation at the end of step  2  :

         9    1
  (56 • ——) • —
        14    3

Step  3  :

Final result :

  12