4/27 expressed as a percentage is 14.81%. This value tells you how much of a whole the fraction represents when you think in terms of hundredths.
The fraction 4/27 is a proper fraction, meaning the numerator is smaller than the denominator. It can be useful in situations where you need to split something into 27 equal parts and take 4 of those parts, such as sharing a small portion of a recipe or dividing a project into many tasks.
When you see 14.81% on a report or a chart, you know it comes from the same simple fraction, just shown in a way that's easier for most people to read quickly. The rounding to two decimal places keeps the number tidy without losing much accuracy.