Multiplying Fractions Calculator

Work out multiplying fractions instantly with clear inputs, formula shown and shareable results.

About Multiplying Fractions Calculator

Multiplying fractions needs no common denominator: multiply the numerators together and the denominators together, then reduce by the greatest common divisor.

Formula

Multiplying fractions

(a/b) × (c/d) = ac / bd

Worked example

With the default values below, Multiplying Fractions Calculator returns Product in lowest terms of 1/4. Change any input above and every figure here is recalculated in your browser.

Inputs used

First numerator: 2
First denominator: 3
Second numerator: 3
Second denominator: 8

Results

Product in lowest terms: 1/4
As a mixed number: 1/4
Decimal value: 0.25000000
Before simplifying: 6/24

Step by step

1Values used
2Multiplying fractions
3Product in lowest terms= 1/4
4As a mixed number= 1/4
5Decimal value= 0.25000000
6Before simplifying= 6/24

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 8 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

What is 2/3 × 3/8?

6/24, which reduces to 1/4.

Can I cancel before multiplying?

Yes. Cancelling common factors across the numerators and denominators first keeps the numbers small and gives the same answer.