from fractions import Fraction
Fraction('1/3')
Fraction(4,5) + 1
Fraction('4/5') + 1
Fraction(3.5)
Fraction(3.4)
Fraction(3.4).limit_denominator(10)
Fraction(3,8).numerator
Fraction(3,8).denominator
float(Fraction(3,8))
float(Fraction(1,3))