This week in PreCalc 11 we learned how to solve rational equations where fractions with binomial or trinomial numerators or denominators are multiplied or divided by eachother or on other sides of the equal sign. There are two main ways to solve these rational equations, 1 is by cross multiplying which is done when its 2 fractions on opposite sides of the equal sign and the other is to multiply for common denominators which is usually done when there are multiple fractions on one or both sides of the equal sign.

When dividing you flip the fraction that is dividing into and change the division sign to a multiplication sign.