Simplify fractions, convert mixed numbers and decimals to fractions — with step-by-step solution and adjustable decimal precision.
Fraction Simplifier
Reduce any fraction to its lowest terms
Decimal to Fraction
Convert any decimal to a simplified fraction
How to use:
Simplify mode — enter whole part (optional), numerator, and denominator, press “Simplify” or “Show Steps”. Decimal mode — switch tab, enter a decimal, press “Convert”. Choose rounding with the buttons or type a custom value.
Enter a fraction or mixed number — the calculator reduces it to lowest terms using the GCD (greatest common divisor) and shows the result as an improper fraction, mixed number, and decimal. Decimal precision is adjustable from 0 to 20 places.
The “Decimal → Fraction” tab does the reverse: type a decimal like 0.375 and get 3/8. Both modes have a “Show Steps” button that walks through the full solution with visual fraction notation — not flat text.
FAQ:
What does simplifying a fraction mean? Reducing it so numerator and denominator share no common factor other than 1. The value stays the same.
How does it work? The calculator finds the GCD using the Euclidean algorithm and divides both parts by it.
Can I enter negative numbers? Yes — on the whole part, numerator, or denominator. The sign is determined automatically.
Improper fraction vs. mixed number? 7/4 is improper, 1 3/4 is mixed. Same value, different notation.
How does decimal-to-fraction work? The decimal is multiplied by a power of 10, then the resulting fraction is simplified by GCD.
Does simplifying change the value? No. 6/8 and 3/4 are equal.