Solution - Simplification or other simple results

Step  1  :

            20
 Simplify   ——
            3 

Equation at the end of step  1  :

         1     20
  (90 • ———) • ——
        300    3 

Step  2  :

             1 
 Simplify   ———
            300

Equation at the end of step  2  :

         1     20
  (90 • ———) • ——
        300    3 

Step  3  :

Final result :

  2