The fraction 42/58 is equal to 72.41% when converted to a percentage. This means that if you had 58 items and took 42 of them, you'd have about 72% of the total. It's a bit more than two-thirds but not quite three-quarters of the whole amount.
In everyday life, you might see this kind of percentage in various situations. For example, if 42 out of 58 people in a survey preferred a certain product, you could say that 72.41% of respondents liked it. Or if a student got 42 questions right out of 58 on a test, their score would be about 72%. It's a useful way to understand parts of a whole in terms that are easy to grasp.