gistfile1.py

from fractions import Fraction



def integer(first):
    while first is int:
        return True


def fraction(second):
    while second is Fraction:
        return True

#def share_price(mult):
    #shares * price = mult
    #print(mult)

#[int(i) for i in input().split()]

#

while True:
    #try:
        #int(input("Enter number of shares: "))
    #except ValueError:
        #print("Invalid number!")
    price =  Fraction(a,b+c,d)(input("Enter price ( dollars, numerator, denominator: "))
    print(price)