Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "1.05" was replaced by "(105/100)".

Step  1  :

            21
 Simplify   ——
            20

Equation at the end of step  1  :

       21
  10 • ——
       20

Step  2  :

Final result :

  21            
  —— = 10.50000 
  2