30/45 as a percentage is 66.67%. This is the rounded value you would see on most calculators or reports when the fraction is turned into a percent.
The fraction 30/45 can be simplified to 2/3, which is a common ratio in many everyday situations. Seeing it as a percentage makes it easier to compare with other numbers that are already in percent form.
A percentage like 66.67% is useful for quick estimates, such as figuring out how much of a goal has been reached or what portion of a class has completed a task. It gives a clear, understandable picture without needing to work with the original fraction.
