6/38 as a percentage is 15.79%. This is the rounded value you get when you express the fraction in terms of a part of one hundred.
The fraction 6/38 can also be simplified to 3/19, but the percentage stays the same. It shows that a relatively small portion of a whole is being described.
Knowing the percentage helps when you need to compare this fraction to other values, like grades or discounts, because percentages are easy to understand at a glance.
