Answer :
5/255 = 1/51
Just divide numerator and denominator by the same number. In this case I divided by 5.
Hope this helps. :)
yeah its really easier than you may think because all you have to do is divide 5 by 5 and 255 by 5 giving you 1/51 if it isn't equal like 8/45 you just divide 8 by 8, and 8 by 45 which is 5.625 which gives you 1/5.625