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Simplify 15/40
15/40 simplified is 3/8 = 0.3750. Free fraction calculator with GCD and decimal conversion.
3/8 = 0.3750
GCD of 15 and 40 is 5. Simplified: 15/5 / 40/5 = 3/8 = 0.3750
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 |
|---|---|
| 15 / 35 | 3/7 = 0.4286 |
| 15 / 38 | 15/38 = 0.3947 |
| 15 / 39 | 5/13 = 0.3846 |
| 15 / 41 | 15/41 = 0.3659 |
| 15 / 42 | 5/14 = 0.3571 |
| 15 / 45 | 1/3 = 0.3333 |
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.