Solution - Adding, subtracting and finding the least common multiple

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "4.5" was replaced by "(45/10)". 2 more similar replacement(s)

Step  1  :

            31
 Simplify   ——
            2 

Equation at the end of step  1  :

        23      45    31
  (0 -  ——) -  (—— -  ——)
        10      10    2 

Step  2  :

            9
 Simplify   —
            2

Equation at the end of step  2  :

        23      9    31
  (0 -  ——) -  (— -  ——)
        10      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:

 9 - (31)     -11
 ————————  =  ———
    2          1 

Equation at the end of step  3  :

        23     -11
  (0 -  ——) -  ———
        10      1 

Step  4  :

            23
 Simplify   ——
            10

Equation at the end of step  4  :

        23     -11
  (0 -  ——) -  ———
        10      1 

Step  5  :

Rewriting the whole as an Equivalent Fraction :

 5.1   Subtracting a whole from a fraction

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

            -11     -11 • 10
     -11 =  ———  =  ————————
             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:

 -23 - (-11 • 10)     87
 ————————————————  =  ——
        10            10

Final result :

  87           
  —— = 8.70000 
  10