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Simplify 21/120
21/120 simplified is 7/40 = 0.1750. Free fraction calculator with GCD and decimal conversion.
7/40 = 0.1750
GCD of 21 and 120 is 3. Simplified: 21/3 / 120/3 = 7/40 = 0.1750
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 |
|---|---|
| 21 / 115 | 21/115 = 0.1826 |
| 21 / 118 | 21/118 = 0.1780 |
| 21 / 119 | 3/17 = 0.1765 |
| 21 / 121 | 21/121 = 0.1736 |
| 21 / 122 | 21/122 = 0.1721 |
| 21 / 125 | 21/125 = 0.1680 |
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.