rat - numeric â numeric
Instance Public methods
Performs subtraction.
Rational(2, 3) - Rational(2, 3) #=> (0/1)
Rational(900) - Rational(1) #=> (899/1)
Rational(-2, 9) - Rational(-9, 2) #=> (77/18)
Rational(9, 8) - 4 #=> (23/8)
Rational(20, 9) - 9.8 #=> -7.577777777777778