When you change 45/55 into a percent you get 81.82%. This is the straightforward answer to “What is 45/55 as a percentage?” and it’s already rounded to two decimal places.
The fraction 45/55 can be reduced to 9/11, which is a little less than five‑tenths (½) and a bit more than four‑tenths (0.4). Seeing it as 81.82% makes it easier to compare with everyday numbers, like test scores or discounts.
In practical terms, a value of 81.82% tells you that you have about eight‑tenths of a whole. Whether you’re looking at a grade, a survey result, or a financial rate, thinking of 45/55 as 81.82% gives a clear, quick picture of how large the portion is.
