Solution - Simplification or other simple results

Step  1  :

            7
 Simplify   —
            6

Equation at the end of step  1  :

       -2    7
  (7 • ——) • —
       -5    6

Step  2  :

            -2
 Simplify   ——
            -5

Equation at the end of step  2  :

       2    7
  (7 • —) • —
       5    6

Step  3  :

Final result :

  49           
  —— = 3.26667 
  15