Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.7" was replaced by "(7/10)". 2 more similar replacement(s)

Step  1  :

             7
 Simplify   ——
            10

Equation at the end of step  1  :

  49     7
  —— -  ——
  10    10

Step  2  :

            49
 Simplify   ——
            10

Equation at the end of step  2  :

  49     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:

 49 - (7)     21
 ————————  =  ——
    10        5 

Final result :

  21           
  —— = 4.20000 
  5