When you turn 27⁄30 into a percent, you get 90.00%. This is the exact value after rounding to two decimal places, and it shows how close the fraction is to a whole.
The fraction 27⁄30 can be reduced by dividing both numbers by 3, giving 9⁄10. A denominator of 10 makes it easy to see the size of the part: nine out of ten pieces are taken, which matches the 90 % idea.
Seeing the percentage helps in everyday situations. For example, if you score 27 out of 30 on a test, you’ve earned 90.00% of the possible points, which is usually considered a solid “A” grade. This simple link between fractions and percentages makes it quick to compare results.
