The fraction 45/53 as a percentage is 84.91%. This means that if you split something into 53 equal parts and take 45 of those parts, you have about 85 % of the whole.
Seeing a fraction turned into a percent helps you understand its size more easily. For example, in a school project where 45 out of 53 tasks are finished, you can say the project is roughly 84.91% complete, which sounds clearer than the raw fraction.
In everyday life, percentages like this are useful for grades, budgets, or any situation where you compare a part to a whole. Knowing that 45/53 is close to 85 % tells you the amount is fairly large, but not quite all of it.