15/68 as a percentage is 22.06%. This value tells you that the fraction represents a little over one‑fifth of a whole. When you see 22.06%, you can picture it as roughly 22 out of every 100 parts.
The fraction 15/68 is a proper fraction, meaning the numerator is smaller than the denominator. It can be reduced no further because 15 and 68 share no common factors besides 1. This makes the fraction already in its simplest form.
Knowing the percentage form is handy for quick comparisons. For example, if a school report shows that a student answered 15 out of 68 questions correctly, you can instantly see they got about 22 % right, which is easier to understand at a glance.