72/100 = 72%
The fraction 72/100, or 72%, can describe everyday things like a quiz score, a phone battery level, or how much of a task is finished. It tells you that the amount is a little over seven-tenths of the whole.
To picture it quickly, imagine a grid with 100 squares and 72 shaded in. You can also think of it as just under three-quarters, since three-quarters is 75%.
A common mix-up is confusing 72% with 72 percentage points. For example, a score rising from 20% to 72% has gone up by 52 percentage points, not 72.