49/52 as a percentage is 94.23%. This means the fraction is just a little under a full whole. When you see this number, you know it represents a very high proportion of something.
The fraction 49/52 is a simple way to show that 49 parts out of 52 are being considered. Because the denominator is only a few units larger than the numerator, the value is naturally close to 1, or 100 %. That closeness is reflected in the percentage.
In everyday situations, 94.23% could describe a test score, a success rate, or the amount of a product that meets quality standards. It tells you that almost all of the total is present, with just a tiny bit missing.