Division Calculator

Dividend (a)

Number being divided (top / left).

Divisor (b)

Number you divide by (bottom / right). Must be non-zero.

Decimal places

Rounding precision for decimal result.

Drag & drop or paste an expression like 123 / 7 or 45 ÷ 9. Nothing is uploaded.

Division – Quick Cheat Sheet

Decimal result: rounds to the selected places (0–12). Uses standard rounding.
Quotient & remainder: integer division with q = trunc(a/b), r = a − q×b.
Reduced fraction: simplifies a / b using GCD. Denominator kept positive.
Mixed number: whole + remainder/denominator from the reduced fraction.
Signs: fraction sign is stored in the numerator; denominator is positive.
Validation: divisor must be non-zero; inputs must be numeric.
Tip: You can drag & drop or paste text like 3/8 or -42 ÷ 5 to auto-fill the form. Nothing is uploaded.