30/34 as a percentage is 88.24%. This number tells you how close the fraction is to a whole, and the rounding is to two decimal places.
The fraction 30/34 can be reduced by dividing both numbers by 2, giving 15/17. Even in its reduced form, it still represents the same value, which is the same 88.24% when expressed as a percent.
Knowing this percentage is handy for quick comparisons. For example, if a test score is 30 out of 34 points, you can say the student earned about 88.24% of the possible points, showing strong performance.
