Solution - Simplification or other simple results

Step  1  :

            21
 Simplify   ——
            5 

Equation at the end of step  1  :

  34   21
  —— • ——
  7    5 

Step  2  :

            34
 Simplify   ——
            7 

Equation at the end of step  2  :

  34   21
  —— • ——
  7    5 

Step  3  :

Final result :

  102            
  ——— = 20.40000 
   5