18/27 as a percentage is 66.67%. This number tells you how much of a whole 18 parts out of 27 represent when you think of the whole as 100 %.
The fraction 18/27 can be reduced to its simplest form, 2/3, which is a common ratio you’ll see in many everyday situations—like two slices out of three in a pizza. Knowing the percentage makes it easier to compare with other numbers that are already expressed out of 100.
Understanding both the fraction and its percentage helps in real‑life tasks such as budgeting, cooking, or interpreting grades, where you often need to see how a part relates to the whole quickly.
