Solution - Adding, subtracting and finding the least common multiple

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.9" was replaced by "(9/10)". 3 more similar replacement(s)

Step  1  :

             9
 Simplify   ——
            10

Equation at the end of step  1  :

   33     3      9
  (—— -  ——) -  ——
   10    10     10

Step  2  :

             3
 Simplify   ——
            10

Equation at the end of step  2  :

   33     3      9
  (—— -  ——) -  ——
   10    10     10

Step  3  :

            33
 Simplify   ——
            10

Equation at the end of step  3  :

   33     3      9
  (—— -  ——) -  ——
   10    10     10

Step  4  :

Adding fractions which have a common denominator :

 4.1       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:

 33 - (3)     3
 ————————  =  —
    10        1

Equation at the end of step  4  :

  3     9
  — -  ——
  1    10

Step  5  :

Rewriting the whole as an Equivalent Fraction :

 5.1   Subtracting a fraction from a whole

Rewrite the whole as a fraction using  10  as the denominator :

          3     3 • 10
     3 =  —  =  ——————
          1       10  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

 5.2       Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

 3 • 10 - (9)     21
 ————————————  =  ——
      10          10

Final result :

  21           
  —— = 2.10000 
  10