49/75 as a percentage is 65.33%. This is the decimal form of the fraction turned into a percent, rounded to two decimal places. It tells you how much of a whole 49 parts out of 75 represent.
The fraction 49/75 can also be thought of as a little more than half, since ½ would be 50%. Seeing it as 65.33% makes it easier to compare with other percentages, like test scores or discounts.
In everyday use, you might see 65.33% on a chart, a report, or a recipe that uses ratios. Knowing the simple link between the fraction and its percent helps you quickly understand the size of the part relative to the whole.