## Introduction

Python Fraction type implements a rational number object.

It keeps both a numerator and a denominator explicitly.

Fraction resides in a module.

You can import its constructor and pass in a numerator and a denominator to make one.

## Demo

from fractions import Fraction
x = Fraction(1, 3) # Numerator, denominator
y = Fraction(4, 6) # Simplified to 2, 3 by gcd
# w ww. j a v a2 s. com
print( x )
print( y )

## Result

Once created, Fractions can be used in mathematical expressions as usual:

## Demo

from fractions import Fraction
x = Fraction(1, 3) # Numerator, denominator
y = Fraction(4, 6) # Simplified to 2, 3 by gcd
# w w w. ja va 2s . c o m
print( x )
print( y )
print( x + y )
print( x - y ) # Results are exact: numerator, denominator
print( x * y )

## Result

Fraction objects can be created from floating-point number strings, much like decimals:

## Demo

from fractions import Fraction
x = Fraction(1, 3) # Numerator, denominator
y = Fraction(4, 6) # Simplified to 2, 3 by gcd
print( Fraction('.25') )
print( Fraction('1.25') )
print( Fraction('.25') + Fraction('1.25') )

## Result

## Related Topics