Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "1.6" was replaced by "(16/10)". 2 more similar replacement(s)

Step  1  :

            8
 Simplify   —
            5

Equation at the end of step  1  :

  42   8
  —— • —
  10   5

Step  2  :

            21
 Simplify   ——
            5 

Equation at the end of step  2  :

  21   8
  —— • —
  5    5

Step  3  :

Final result :

  168           
  ——— = 6.72000 
  25