Add, subtract, multiply, divide and simplify fractions, with mixed-number and decimal output.
Calculate percentages, percentage change and increases or decreases, with the formula and steps shown.
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Fraction Calculator adds, subtracts, multiplies, and divides two fractions using exact integer arithmetic (GCD-based reduction) — never floating-point for the fraction result itself.
No — every fraction operation (add/subtract/multiply/divide, and GCD-based reduction) uses exact integer arithmetic. Only the extra decimal approximation shown alongside it uses floating-point, and it is clearly labeled as an approximation.
Yes — both negative fractions and improper fractions (numerator larger than denominator) are supported; the sign is normalized and the result reduced automatically.
A clear error is shown, since that is equivalent to dividing by zero, which is mathematically undefined.
5/6
Decimal approximation: 0.833333
