Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "1.75" was replaced by "(175/100)".

Step  1  :

            7
 Simplify   —
            4

Equation at the end of step  1  :

  7
  —
  4

Step  2  :

                 7
 Divide  21  by  —
                 4

Final result :

  12