Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "3.9" was replaced by "(39/10)". 2 more similar replacement(s)

Step  1  :

            39
 Simplify   ——
            10

Equation at the end of step  1  :

  57    39
  —— -  ——
  10    10

Step  2  :

            57
 Simplify   ——
            10

Equation at the end of step  2  :

  57    39
  —— -  ——
  10    10

Step  3  :

Adding fractions which have a common denominator :

 3.1       Adding fractions which have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

 57 - (39)     9
 —————————  =  —
    10         5

Final result :

  9           
  — = 1.80000 
  5