Fraction Calculator
Add, subtract, multiply, and divide fractions, then simplify the result.
Fraction Calculator
Enter your values below
—Result
Formula & How It Works
a/b ± c/d = (a×d ± c×b) ÷ (b×d)The calculator finds a common denominator when needed and reduces the answer.
Use this calculator as a fast planning tool. Always confirm important financial, medical, construction, or recipe measurements with a qualified source before making final decisions.