Final answer:
The fraction 21/25 is equivalent to the decimal 0.84 as found by dividing 21 by 25.
Step-by-step explanation:
To find out which decimal is equivalent to the fraction 21/25, you need to perform a simple division operation. Fractions are a form of division; the top number (21 in this case) is divided by the bottom number (25).
21 divided by 25 equals 0.84. So, the correct answer is: C. 0.84.
Learn more about Fractions to Decimals