Math calculators
Percentages, ratios, algebra and statistics.
6 calculators available
Percentage Calculator
Work out a percentage of a number, add or take off a percentage, or compare two numbers — with the working shown at every step.
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Fraction Calculator
Add, subtract, multiply or divide two fractions — with the answer in lowest terms, as a mixed number and as a decimal, and every step shown.
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Ratio Calculator
Simplify a ratio to lowest terms, or find the missing term of a proportion — with every step of the working shown.
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Square Root & Cube Root Calculator
Find the square root or cube root of any number — as a decimal and in simplest radical form, like √72 = 6√2, with the working shown.
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LCM and GCD Calculator
Find the least common multiple and greatest common divisor (HCF) of two to four numbers, with the prime factors worked out step by step.
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Marks Percentage Calculator
Turn your marks into a percentage, and see how many marks a target percentage needs — for exams, tests and report cards.
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