Solution - Simplification or other simple results

Step  1  :

             7
 Simplify   ——
            10

Equation at the end of step  1  :

   9     7
  —— -  ——
  10    10

Step  2  :

             9
 Simplify   ——
            10

Equation at the end of step  2  :

   9     7
  —— -  ——
  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:

 9 - (7)     1
 ———————  =  —
   10        5

Final result :

  1           
  — = 0.20000 
  5