3 out of 21 as a Percentage
3 out of 21 is 14.29%, which is a letter grade of F.
Percentage
14.29%
Letter Grade
F
Wrong Answers
18
Simplified
1/7
Understanding the Calculation
To convert 3 out of 21 into a percentage, divide the correct answers (3) by the total questions (21) and multiply by 100:
(3 ÷ 21) × 100 = 14.29%
With 3 correct answers out of 21, you got 18 wrong. The fraction 3/21 simplifies to 1/7. On the standard grading scale, 14.29% corresponds to a F.