Skip to matrix input
Linear Algebra · Exact Arithmetic
RREF Calculator
Reduce any matrix to row echelon form using exact fraction arithmetic — no floating-point rounding, nothing to install.
Matrix
Cells accept integers, decimals, or fractions such as 3/4. Use arrow keys to move between cells.
Scroll to see more columns →
Result
Enter a matrix and press Calculate to see its row echelon forms, rank, and step-by-step reduction.
Reduced Row Echelon Form