Calculator tool
Enter two fractions and choose an operation (add, subtract, multiply, or divide). The calculator finds a common denominator when needed, performs the operation, then simplifies the result using the greatest common divisor (GCD).
Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, law, or security, compare the result with trusted professional guidance when needed.
How does the calculator simplify fractions?
It divides both numerator and denominator by their greatest common divisor (GCD) using the Euclidean algorithm.
Can I divide by zero?
No. If any denominator is zero the result is undefined.
Ratio Calculator
Simplify ratios, check proportions, and solve for missing values in equivalent ratios.
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Calculate percentages, find what percent a number is, or compute percent change.
Open toolLeast Common Multiple Calculator
Find the Least Common Multiple (LCM) of two or more integers — the smallest number divisible by all of them.
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