9 calculators in this category
- Adding & Subtracting Fractions CalculatorEnter two fractions or mixed numbers and this calculator adds or subtracts them exactly — no rounding, no decimal drift. It…
- Multiplying Fractions CalculatorFundamental rule of fraction multiplicationMultiplying fractions is the easiest of the four fraction operations: multiply the tops, multiply the bottoms, reduce. No…
- Dividing Fractions CalculatorDivide one fraction or mixed number by another and get the exact quotient in lowest terms, as a mixed number, and as a decimal…
- Simplifying Fractions CalculatorEuclidean algorithm (Euclid, Elements VII.1–2)Enter any numerator and denominator and this calculator reduces the fraction to lowest terms, shows the greatest common divisor…
- Mixed Number to Improper Fraction CalculatorThis calculator converts in both directions at once. Enter a mixed number such as 3 1/2 and it returns the improper fraction…
- Fraction to Decimal CalculatorEnter a numerator and a denominator and this calculator performs the long division exactly. It reports the decimal in full —…
- Decimal to Fraction CalculatorExact rational conversionType a decimal and this calculator returns the exact fraction it equals, reduced to lowest terms, with the greatest common…
- Rounding CalculatorIEEE 754-2019Pick a place — hundredths, whole numbers, nearest thousand — choose a tie-breaking rule, and this calculator rounds…
- Significant Figures CalculatorASTM E29 significant digits practiceType a measured value exactly as it is written and this calculator tells you how many significant figures it carries, rounds it…
Which one do you need?
- Adding & Subtracting Fractions Calculator
- Add or subtract fractions and mixed numbers, see the least common denominator and every step of the arithmetic, and get a fully reduced answer.
- Multiplying Fractions Calculator
- Multiply two or three fractions, mixed numbers or whole numbers. See the cross-cancellation, the reduced product, the mixed form and the decimal value.
- Dividing Fractions Calculator
- Divide fractions, mixed numbers and whole numbers using the reciprocal rule. See the keep-change-flip steps, the reduced quotient and its decimal value.
- Simplifying Fractions Calculator
- Reduce any fraction to lowest terms with the Euclidean algorithm. See the GCD used, the mixed number, the decimal value and a list of equivalent fractions.
- Mixed Number to Improper Fraction Calculator
- Convert a mixed number to an improper fraction and back, in one step. See the whole-times-denominator working, the reduced form and the decimal value.
- Fraction to Decimal Calculator
- Convert any fraction to a decimal exactly, see whether it terminates or repeats, get the repeating block and its length, and round to any number of places.
- Decimal to Fraction Calculator
- Convert any terminating or repeating decimal to an exact fraction in lowest terms, plus the nearest 1/2 to 1/64 shop fraction and the error it introduces.
- Rounding Calculator
- Round any number to a decimal place or place value using half away from zero, banker's half-to-even, ceiling, floor or truncation, with every rule compared.
- Significant Figures Calculator
- Count significant figures in any number and round to the sig figs you need. Applies the multiplication and addition retention rules with every step shown.