Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "2.6" was replaced by "(26/10)". 2 more similar replacement(s)

Step  1  :

            13
 Simplify   ——
            5 

Equation at the end of step  1  :

  18   13
  —— • ——
  10   5 

Step  2  :

            9
 Simplify   —
            5

Equation at the end of step  2  :

  9   13
  — • ——
  5   5 

Step  3  :

Final result :

  117           
  ——— = 4.68000 
  25