Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "2.5" was replaced by "(25/10)". 2 more similar replacement(s)

Step  1  :

            5
 Simplify   —
            2

Equation at the end of step  1  :

  105    5
  ——— -  —
  10     2

Step  2  :

            21
 Simplify   ——
            2 

Equation at the end of step  2  :

  21    5
  —— -  —
  2     2

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:

 21 - (5)     8
 ————————  =  —
    2         1

Final result :

  8