Arithmetic Calculators

Adding and Subtracting Mixed Numbers Step by Step

The mixed number calculator converts each mixed number to an improper fraction, applies the operation, and converts back — and this article traces that process through real add, subtract, and multiply results.

Adding, Multiplying, and Dividing Fractions With One Formula

The fraction calculator handles add, subtract, multiply, and divide with the same core steps — combine the numerators and denominators for the chosen operation, then simplify — and this article walks through a real result for each operation.

Basic Arithmetic: Worked Examples for Add, Subtract, Multiply, and Divide

The basic math calculator handles exactly four operations on two numbers, and seeing real results for each — including a division that lands on a whole number — shows how it rounds internally versus what it displays.

Big Number Results in Scientific Notation

A big-number arithmetic result can run to dozens of digits, and feeding that exact digit string straight into the scientific notation calculator turns it into a compact, readable mantissa and exponent.

Converting Between Fractions and Decimals

Converting a fraction to a decimal is division — numerator ÷ denominator — while converting a decimal to a fraction reads off its place value and then simplifies; the tricky part is a repeating decimal, which can only ever be typed to a finite number of digits.