When you ask what 42/51 is as a percentage, the answer is 82.35%. This number tells you how large the fraction is compared to a whole.
The fraction 42/51 can be reduced to 14/17, which still represents the same amount. Whether you write it as a fraction or a percentage, it shows a value that is well over three‑quarters of a whole.
In everyday situations, thinking of 42/51 as 82.35% can help you quickly see how big a part of a group or a budget it makes up. It’s a handy way to compare numbers without dealing with complicated fractions.