Solution - Simplification or other simple results

Step  1  :

            2861
 Simplify   ————
             6  

Equation at the end of step  1  :

         2861
  ((26 • ————) • r26) • s
          6  

Step  2  :

Equation at the end of step  2  :

  (13•2861r26)
  ———————————— • s
       3      

Step  3  :

Final result :

  (13•2861r26s)
  —————————————
        3