39/60 = 65%
A value like 65% might show up as a score on a quiz, a discount on a sale, or the battery level on a phone. It tells you that a little under two-thirds of the whole is involved.
To picture 65%, imagine 100 small squares with 65 shaded in. For a quick estimate, think of it as a bit more than half and close to two-thirds; two-thirds is about 67%.
One common mix-up is treating 65% as though it means 65 out of 60, rather than 65 out of 100. Percentages describe a share of a whole, so it helps to check what the whole is in each situation.