What is 3/21 as a percentage? It equals 14.29%. This simple figure tells you how much of a whole 3 parts out of 21 represent.
The fraction 3/21 can be reduced to 1/7, which is an easy way to see the size of the part. One‑seventh of anything is just a little over one‑tenth, and that matches the 14.29% you see.
Knowing that 3/21 is 14.29% helps when you compare parts of a set, calculate discounts, or work with data in everyday situations. It’s a handy number to keep in mind for quick estimates.
