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Simplify 45/21
45/21 simplified is 15/7 = 2.1429. Free fraction calculator with GCD and decimal conversion.
15/7 = 2.1429
GCD of 45 and 21 is 3. Simplified: 45/3 / 21/3 = 15/7 = 2.1429
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 |
|---|---|
| 45 / 16 | 45/16 = 2.8125 |
| 45 / 19 | 45/19 = 2.3684 |
| 45 / 20 | 9/4 = 2.2500 |
| 45 / 22 | 45/22 = 2.0455 |
| 45 / 23 | 45/23 = 1.9565 |
| 45 / 26 | 45/26 = 1.7308 |
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.