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Simplify 42/21
42/21 simplified is 2/1 = 2.0000. Free fraction calculator with GCD and decimal conversion.
2/1 = 2.0000
GCD of 42 and 21 is 21. Simplified: 42/21 / 21/21 = 2/1 = 2.0000
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 |
|---|---|
| 42 / 16 | 21/8 = 2.6250 |
| 42 / 19 | 42/19 = 2.2105 |
| 42 / 20 | 21/10 = 2.1000 |
| 42 / 22 | 21/11 = 1.9091 |
| 42 / 23 | 42/23 = 1.8261 |
| 42 / 26 | 21/13 = 1.6154 |
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.