# ask the user for a numerator
numerator = int(input("Numerator: "))

# enter into an infinite loop
while True:

	# get a denominator
	denominator = int(input("Denominator: "))

	# if they enter a zero we should tell them
	if denominator == 0:
		print ("Denominator cannot be zero!")
	else:
		# exit the loop
		break

# output
print (numerator, "/", denominator, "=", numerator/denominator)