Establish what two items or measurements you are going to compare in your paper.
Break down the ratio into its lowest terms.
For example, if you have six oranges and four apples, you will need to express the ratio in lowest terms so that you would have three oranges and two apples.
Express the ratio using figures and hyphenation.
For example, you have three oranges and two apples, so your ratio of oranges to apples is 3-to-2.