Equivalent Fractions

Equivalent fractions are different fractions that represent the same value. Multiplying or dividing both the numerator and denominator by the same non-zero number produces an equivalent fraction

The calculator uses the standard published formula for equivalent fractions. 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: To find missing numerator: use proportion — a/b = x/d → x = a×d/b. Each step in the calculation is shown so you can verify the result manually.