42/80 as a percentage is 52.50%. This value tells you that the fraction represents a little more than half of a whole. It’s a quick way to see the size of the part compared to 100.
The fraction 42/80 can be simplified to 21/40, which still shows the same proportion. Both forms describe the same relationship between the part (42) and the whole (80).
In everyday situations, you might see 52.50% on a report card, a budget, or a sports statistic. Knowing the percentage helps you compare it easily with other numbers that are already expressed out of 100.
