denominator -> Integer[permalink][rdoc][edit]() → Integer-
例selfの分母（denominator）を返します。分母は常に正の整数です。p Rational(7).denominator # => 1 p Rational(7, 1).denominator # => 1 p Rational(9, -4).denominator # => 4 p Rational(-2, -10).denominator # => 5[SEE_ALSO] Rational#numerator