Solution - Simplification or other simple results

Step  1  :

            25
 Simplify   ——
            3 

Equation at the end of step  1  :

  18   25
  —— • ——
  5    3 

Step  2  :

            18
 Simplify   ——
            5 

Equation at the end of step  2  :

  18   25
  —— • ——
  5    3 

Step  3  :

Final result :

  30