30/42 as a percentage is 71.43%. This percentage tells us how much of a whole the fraction represents when we look at it on a scale of 100.
The fraction 30/42 can be simplified by dividing both numbers by their greatest common divisor, 6, which gives the reduced form 5/7. Even though the numbers are smaller, the value stays the same, so 5/7 also equals 71.43%.
In everyday terms, if you had 42 pieces of something and you owned 30 of them, you would own about seventy‑one percent of the total. This makes it easy to compare the part to a whole using familiar percentages.
