Can I work with whole numbers and mixed fractions together?

Yes. Simply fill in the optional whole-number box next to either fraction, or leave it blank (0) for standard fractions.

Math & Statistics100% Client-Side · Instant Math

Fraction Calculator

Add, subtract, multiply, and divide fractions & mixed numbers with step-by-step LCD.

Operation

Result Summary

Simplified Fraction

29/12

Mixed Number

2 5/12

Decimal Equivalent

2.416667

Least Common Denominator (LCD)

How to Use This Calculator

Perform exact fraction arithmetic supporting proper fractions, improper fractions, and mixed numbers with automatic Euclidean GCD simplification and decimal conversion.

1Enter whole numbers (optional for mixed numbers), numerators, and denominators for both fractions.
2Select +, -, ×, or ÷.
3View the exact reduced fraction, mixed number form, decimal equivalent, and step-by-step LCM/GCD simplification.

Standard Formula & Methodology

a/b + c/d = (a·d + c·b) / (b·d), then divided through by gcd(num, den).

Helpful Context & Precision Notes

Great for woodworking measurements, recipe scaling, and school math verification.

All inputs stay locally inside your browser tab — nothing is uploaded or logged.

Frequently Asked Questions

Our engine computes the Greatest Common Divisor (GCD) via the Euclidean algorithm and divides both numerator and denominator to their lowest integer terms.