What is 40/45 as a percentage? It is 88.89%. The fraction 40/45 simplifies to a value that, when expressed as a percent, rounds to this number.
This percentage tells you that 40 out of 45 parts represent almost nine‑tenths of the whole. In everyday terms, if you had 45 items and kept 40 of them, you would have kept about 89 % of the total.
Remember that 88.89% is just a rounded figure. If you need more precision, you can keep more decimal places, but for most practical uses this rounded value is clear and easy to understand.
