Multiplying a Fraction by a Fraction

To multiply two fractions, just multiply the numerators to get the numerator of the product, and multiply the denominators to get the denominator of the product.

For example:

You can visualize this by starting with a drawing of 2/3, then finding 5/7 of that quantity. Divide the 2/3 piece into 7 pieces of equal size. Then shade 5 of them.

2/3 * 5/7

Note that, even if the two fractions you're multiplying are both in simplest form, the result may not be:

This answer is correct, but it's better if you reduce the fraction (write it in simplest form). Factor out a 2 from both the numerator and denominator, and then cancel the common factor.

Note: If you're careful, you can speed up this process by reducing first, before multiplying.