9 out of 21 as a Percentage
9 out of 21 is 42.86%, which is a letter grade of F.
Percentage
42.86%
Letter Grade
F
Wrong Answers
12
Simplified
3/7
Understanding the Calculation
To convert 9 out of 21 into a percentage, divide the correct answers (9) by the total questions (21) and multiply by 100:
(9 ÷ 21) × 100 = 42.86%
With 9 correct answers out of 21, you got 12 wrong. The fraction 9/21 simplifies to 3/7. On the standard grading scale, 42.86% corresponds to a F.