Final answer:
21% can be expressed as the fraction 21/100.
Step-by-step explanation:
To express 21% as a fraction, we can write it as 21/100. The numerator represents the percentage value (21) and the denominator represents the total value (100). Therefore, 21% can be written as the fraction 21/100, which cannot be simplified any further.
Learn more about converting percentages to fractions