Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "r1"   was replaced by   "r^1". 

Step  1  :

            41
 Simplify   ——
            12

Equation at the end of step  1  :

  41
  —— ÷ r16
  12

Step  2  :

         41      
 Divide  ——  by  r16
         12      

Final result :

    41 
  —————
  12r16