Skill: fraction-operations
Fraction Operations Calculator
Add, subtract, multiply, or divide any fractions — including mixed numbers — with the full step-by-step working, a visual bar model, and the answer in lowest terms.
Compute
Type each number as a/b (like 3/4), a mixed number (like 1 1/2), or a whole number.
Why the steps work
Adding / subtracting: the denominator names the piece size, so both fractions must use the same size before the tops can combine. The LCD renames without changing values.
Multiplying: (a/b) × (c/d) = ac/bd — numerators multiply because you take a fraction of a fraction of the pieces; denominators multiply because the pieces subdivide.
Dividing: keep-change-flip turns “how many fit?” into a multiplication, which always gives the same answer.