708/708 = 100%
A fraction like 708/708 shows up when something is completely finished or fully included. For example, if all 708 students turn in a permission form, the school has received 100% of the forms.
You can picture 708/708 as one whole circle shaded in, with no part missing. Since the top and bottom numbers are the same, you can quickly recognize that the value is exactly complete, not just close to complete.
A common mistake is thinking the large numbers make the fraction greater than one. The numbers are large, but because they match, the fraction still represents one whole, or 100%.