The fraction 70/88 equals 79.55% when expressed as a percentage. This value tells you that the fraction is a little under 80 % of a whole.
You can simplify 70/88 to 35/44, but the percentage stays the same. Seeing the number as a percent makes it easier to compare with other values, like test scores or discounts, that are already shown in percent form.
In everyday situations, thinking of 79.55 % helps you quickly judge how close something is to a full amount. For example, if you scored 70 out of 88 points on a quiz, you earned roughly 80 % of the possible points.
