15/18 as a percentage is 83.33%. This fraction simplifies to 5/6, which is a common way to see how large a part of a whole it represents. The decimal form is about 0.8333, and when we turn that into a percent we get the rounded figure shown above.
When you think of 5 out of every 6 parts being filled, you’re looking at a pretty high portion—over four‑fifths of the whole. In everyday terms, that means if you had a pizza cut into six slices and you ate five of them, you’d have eaten roughly 83.33% of the pizza.
Seeing fractions as percentages helps compare them easily. Whether you’re working with grades, discounts, or statistics, knowing that 15/18 translates to 83.33% lets you understand its size at a glance without having to juggle fractions.
