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Simplify 8/21
8/21 simplified is 8/21 = 0.3810. Free fraction calculator with GCD and decimal conversion.
8/21 = 0.3810
GCD of 8 and 21 is 1. Simplified: 8/1 / 21/1 = 8/21 = 0.3810
How This Was Calculated
Simplification: Divide numerator and denominator by their GCD.
Addition: a/b + c/d = (ad + bc) / bd
Subtraction: a/b - c/d = (ad - bc) / bd
Multiplication: a/b × c/d = ac / bd
Division: a/b ÷ c/d = ad / bc
Quick Reference Table
| Input | Result |
|---|---|
| 8 / 16 | 1/2 = 0.5000 |
| 8 / 19 | 8/19 = 0.4211 |
| 8 / 20 | 2/5 = 0.4000 |
| 8 / 22 | 4/11 = 0.3636 |
| 8 / 23 | 8/23 = 0.3478 |
| 8 / 26 | 4/13 = 0.3077 |
Frequently Asked Questions
What is a fraction?
A fraction represents a part of a whole, written as numerator/denominator.
How do I simplify fractions?
Divide both numerator and denominator by their greatest common divisor.
Can I add fractions with different denominators?
Yes, the calculator handles common denominators automatically.