When you turn the fraction 6/46 into a percent, you get 13.04%. This tells you that 6 out of every 46 equal parts represents just a little over thirteen percent of the whole.
The fraction 6/46 can be reduced to 3/23, which is still the same size as the original. Whether you write it as 6/46, 3/23, or 13.04%, each form shows the same proportion of a group or amount.
Percentages are handy because they let you compare parts of different sized groups easily. Saying something is 13.04% of a whole makes it clear how small or large that piece is, no matter what the total number might be.