Solution - Simplification or other simple results

Step  1  :

            11
 Simplify   ——
            10

Equation at the end of step  1  :

   125   115    11
  (——— • ———) • ——
   100   100    10

Step  2  :

            23
 Simplify   ——
            20

Equation at the end of step  2  :

   125   23    11
  (——— • ——) • ——
   100   20    10

Step  3  :

            5
 Simplify   —
            4

Equation at the end of step  3  :

   5   23    11
  (— • ——) • ——
   4   20    10

Step  4  :

Final result :

  253           
  ——— = 1.58125 
  160