w3resource

Python Math: Display the fraction instances of the string representation of a number


43. Fraction from String Representation

Write a Python program to display fraction instances of the string representation of a number.

Sample Solution:

Python Code:

import fractions

for s in ['0.7', '2.5', '9.32', '7e-1']:
    f = fractions.Fraction(s)
    print('{0:>4} = {1}'.format(s, f))

Sample Output:

 0.7 = 7/10                                                                                                   
                                                                                                              
 2.5 = 5/2                                                                                                    
                                                                                                              
9.32 = 233/25                                                                                                 
                                                                                                              
7e-1 = 7/10

Flowchart:

Flowchart: Display the fraction instances of string representation of number

For more Practice: Solve these Related Problems:

  • Write a Python program to convert a string representation of a decimal (e.g., '2.5') into a Fraction instance and print it.
  • Write a Python function that accepts a list of numeric strings and returns a list of Fraction objects representing each number.
  • Write a Python script to parse a CSV line of numeric strings, convert each to a Fraction, and then print the list of fractions.
  • Write a Python program to read multiple numeric strings from input, convert them to Fraction instances, and display each fraction in its simplest form.

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to get the local and default precision.
Next: Write a Python program to create the fraction instances of float numbers.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.