15/18 as a percentage is 83.33%. This number tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 15/18 can be simplified by dividing both the numerator and the denominator by their greatest common divisor, 3, which gives you 5/6. Whether you use 15/18 or its simpler form 5/6, the value stays the same, and the percentage remains 83.33%.
Knowing this percentage is handy in everyday situations, like figuring out what portion of a pizza has been eaten or how much of a budget has been used. It gives a quick, easy‑to‑understand picture of the part‑to‑whole relationship.
