### 2.8.4 Denominator of a fraction after simplification : `denom getDenom`

`denom` or `getDenom` takes as argument a fraction and returns the denominator of this fraction after simplification (for rational fractions see 2.28.4).
Input :

`denom(42/12)`

Or :

`getDenom(42/12)`

Output :

`2`

To avoid simplifications, the argument must be quoted (for rational fractions see 2.28.3).
Input :

`denom(’42/12’)`

Or :

`getDenom(’42/12’)`

Output :

`12`