Question

Want to make a simple program to calculate the ratio btwn 3 given numbers. For ex. Given numbers: 3,6,9 than the o/p should be 1:2:3.

Answer 1

If the input data is going to keep this ratio:

#!/usr/bin/python
print first // first, second // first, third // first

The "//" forces integer division.

In the general case, you have to find the greatest common denominator and then divide by that.
'''
#!/usr/bin/python

import sys

def gcd( first, second ):
"""
Implements Euclid's algorithm for finding the largest common denominator
of two integers.
"""
x = max( first, second )
y = min( first, second )
remainder = x % y
while( remainder != 0 ):
x = y
y = remainder
remainder = x % y
return y

if( __name__ == "__main__" ):
print gcd( int( sys.argv[1] ), int( sys.argv[2] ) )
sys.exit( 0 )
'''

Answer 2

What language did you want to make it in?