Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "4.2" was replaced by "(42/10)". 2 more similar replacement(s)

Step  1  :

            21
 Simplify   ——
            5 

Equation at the end of step  1  :

  42   21
  —— • ——
  10   5 

Step  2  :

            21
 Simplify   ——
            5 

Equation at the end of step  2  :

  21   21
  —— • ——
  5    5 

Step  3  :

Final result :

  441            
  ——— = 17.64000 
  25