Solution - Simplification or other simple results

Step  1  :

            1
 Simplify   —
            5

Equation at the end of step  1  :

   12   11    1
  (—— • ——) • —
   52   51    5

Step  2  :

            11
 Simplify   ——
            51

Equation at the end of step  2  :

   12   11    1
  (—— • ——) • —
   52   51    5

Step  3  :

             3
 Simplify   ——
            13

Equation at the end of step  3  :

    3   11    1
  (—— • ——) • —
   13   51    5

Step  4  :

Final result :

   11            
  ———— = 0.00995 
  1105