Free math tools
Last updated 2026-10-02
Free calculators that show the working, not just the answer. Each one runs in your browser, keeps nothing you type, and explains the method so you can do the next one by hand.
Fraction to decimal calculator
Turn any fraction or mixed number into a decimal, with the long division written out and repeating decimals marked with a bar. Open the fraction to decimal calculator.
Decimal to fraction calculator
Turn a terminating or repeating decimal into a fraction in simplest form, with the power of 10 or the algebra method shown step by step. Open the decimal to fraction calculator.
Square root simplifier
Simplify a square root to simplest radical form, such as , with the prime factorization and the largest perfect square factor shown. Open the square root simplifier.
When the problem is on paper
These tools handle one kind of question each. For a whole problem from a worksheet, a textbook or your notes, photograph it in AI Math Tutor: it reads the problem, shows you what it read, and solves it one step at a time.