# Comparing fractions review

Review comparing fractions with common denominators, and try some practice problems.

## Comparing fractions

We can compare fractions by seeing which one takes up a greater portion of the same whole.

### Comparing fractions using common denominators

Let's look at an example.
Compare.
start fraction, 3, divided by, 4, end fraction __ start fraction, 5, divided by, 10, end fraction
Let's change the fractions to have a common denominator of 20: (Want to review common denominators? Check out this article.)
Now that our fractions have the same denominator, we compare their numerators:
start color blueD, 15, end color blueD, is greater than, start color greenD, 10, end color greenD
start color blueD, start fraction, 15, divided by, 20, end fraction, end color blueD, is greater than, start color greenD, start fraction, 10, divided by, 20, end fraction, end color greenD
start color blueD, start fraction, 3, divided by, 4, end fraction, end color blueD, is greater than, start color greenD, start fraction, 5, divided by, 10, end fraction, end color greenD