48/68 as a percentage is 70.59%. This shows how the fraction relates to a whole when expressed in percent form.
The fraction 48/68 can be reduced to 12/17, which still represents the same part of a whole. Whether you look at 48 out of 68 or 12 out of 17, the proportion stays the same.
In everyday use, saying 70.59% makes it easier to compare this amount with other percentages, like grades or discounts. It’s a quick way to understand the size of the part relative to the whole.