21/100 as a percentage is 21.00%. This tiny fraction is exactly the same as twenty‑one hundredths, which means that out of every hundred parts, twenty‑one are taken. Seeing it written as a percent makes it easy to compare with other values.
When you work with measurements, prices, or test scores, thinking in terms of percent often feels more natural. For example, a quiz score of 21/100 would be reported as 21.00%, showing a clear picture of performance at a glance.
The fraction 21/100 is also useful in everyday situations, like calculating a tip or a discount. Knowing that it equals 21.00% helps you quickly estimate amounts without having to do extra math.
