The fraction 9/45 is equal to 20.00% when you write it as a percentage. It’s a simple way to see how big the part is compared to the whole.
You can also think of 9/45 as the same as 1/5 after simplifying the numbers. This means that for every five equal pieces, one piece is taken, which matches the idea of one‑fifth or 20 percent.
In everyday life, 20 % shows up a lot—like a discount of one‑fifth off a price or a chance that one out of five events happens. Knowing that 9/45 turns into 20.00% helps you spot these situations quickly.
