To add fractions, make the denominators equal and add the numerators. To multiply, multiply the numerators and denominators separately. The fraction calculator simplifies automatically.

Simplifying a fraction means dividing the numerator and denominator by their greatest common divisor. For example: 4/8 simplifies to 1/2.

Divide the numerator by the denominator. For example: 3/4 = 3 ÷ 4 = 0.75. The fraction calculator shows both fraction and decimal form.