30/56 as a percentage is 53.57%. This number tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 30/56 can be reduced to 15/28, but the size stays the same. Whether you write it as a fraction or a percentage, it shows a little more than half of a whole unit.
Knowing that 30 out of 56 is 53.57% can help you compare it to other numbers, like test scores or data sets, without having to work with fractions all the time. It’s a quick way to see the proportion at a glance.