Mixed to Improper Fraction

Converting a mixed number to an improper fraction creates a single fraction greater than 1. This is needed before adding, subtracting, multiplying, or dividing mixed numbers, as arithmetic is simpler with improper fractions

The calculator uses the standard published formula for mixed to improper. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: Formula: a b/c = (a×c + b) / c. Each step in the calculation is shown so you can verify the result manually.