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Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

instance method

Rational#denominator

() -> ::Integer
rat.denominator → integer

Returns the denominator (always positive).

Example
Rational(7).denominator             #=> 1
Rational(7, 1).denominator          #=> 1
Rational(9, -4).denominator         #=> 4
Rational(-2, -10).denominator       #=> 5
See also #ceil #fdiv #abs #floor also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0