30/42 as a percentage is 71.43%. This value shows how much of a whole 30 parts out of 42 represent when expressed in a familiar percent form. It’s a quick way to see the size of the fraction in everyday terms.
The fraction 30/42 can be reduced to 5/7, which is still the same proportion. Whether you keep it as 30/42, 5/7, or 71.43%, the meaning doesn’t change – it’s the same part of a whole. Using the simpler fraction often makes calculations easier, while the percentage is handy for comparison.
In real‑world situations, you might see this percentage when dealing with scores, ratios, or data that need a clear, relatable figure. For example, a test score of 30 correct answers out of 42 questions would be reported as 71.43% correct, giving a straightforward sense of performance.
