Solution - Simplification or other simple results

Step  1  :

            5
 Simplify   —
            7

Equation at the end of step  1  :

    5   14    5
  (—— • ——) • —
   16   25    7

Step  2  :

            14
 Simplify   ——
            25

Equation at the end of step  2  :

    5   14    5
  (—— • ——) • —
   16   25    7

Step  3  :

             5
 Simplify   ——
            16

Equation at the end of step  3  :

    5   14    5
  (—— • ——) • —
   16   25    7

Step  4  :

Final result :

  1           
  — = 0.12500 
  8