Two things that we will look at in this lesson is how you can solve an equation that contains a rational expression, and how you can solve a formula with a rational expression. Recall that when you are working with equations that have a lot of fractions in them we will often use the least common denominator. This will transform the equation so that it no longer contains fractions. Always check the solutions you find when working rational equations. A possible solution may not work in the original because it makes us divide by zero. You'll also learn how you can solve a formula for a specific variable, when it contains rational expressions.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Solving Rational Equations
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.