42/91 as a percentage is 46.15%. This value is the decimal form of the fraction multiplied by 100 and rounded to two decimal places.
The fraction 42/91 can be simplified by dividing both the numerator and the denominator by 7, giving 6/13. Even in its reduced form, the percentage stays the same because the value of the fraction does not change.
When you need to compare this fraction to other numbers, using the percentage makes it easier. 46.15% shows that 42 is just under half of 91, which can be useful in everyday calculations or quick estimates.