数学
分数计算器
分数的加减乘除，提供分步解答
使用方法
- Select the operation (+, −, ×, ÷) using the buttons above the inputs.
- Enter the numerator (top) and denominator (bottom) for each fraction.
- Results appear instantly — no button press required.
- The calculator automatically simplifies the result and shows the decimal and mixed number equivalents.
公式
Fraction arithmetic rules:
a/b + c/d
= (ad + bc) / bd a/b − c/d
= (ad − bc) / bd a/b × c/d
= ac / bd a/b ÷ c/d
= ad / bc Simplify
Divide numerator & denominator by GCD Fractions represent parts of a whole and are foundational in mathematics, cooking, engineering, and finance. Our free fraction calculator handles addition, subtraction, multiplication, and division of fractions with automatic simplification, mixed number conversion, and decimal equivalents — all updated instantly as you type.