18/27 as a percentage is 66.67%. This number comes from a simple fraction that can be reduced to 2/3, which many people recognize as a common part of a whole. When you see 66.67%, you know it represents roughly two‑thirds of any amount.
The fraction 18/27 shows up in everyday situations, like when a recipe calls for two‑thirds of a cup of milk or when a sports team wins about two out of every three games. Thinking of it as a percentage makes it easier to compare with other numbers that are already expressed in percent form.
Because the exact value of 2/3 is an infinite decimal, we round it to two decimal places, giving 66.67%. This rounded figure is accurate enough for most practical uses, such as budgeting, grading, or quick estimates.