At just under four minutes, this video is a great way to reinforce your lecture on adding rational expressions. Add it to a review session before a unit test, or assign it for homework in your algebra class.

Finishing up his short series on rational expressions, Sal reviews the concept with another example. Those who have a hard time with rational expressions will appreciate the clarity with which Sal explains his process and methodology.

Combine a video with the lesson on combining rational expressions. Young mathematicians first review how to add and subtract rational numbers. They then learn how to apply the same reasoning to add and subtract rational expressions by...

A rational expression is a fraction where the denominator and/or the numerator is a polynomial. The resource presents rational expressions and how to add and subtract them. Additionally, the video connects the addition and subtraction of...

Where do you put the negative sign when working with fractions? The video lesson answers this question by explaining that each fraction has three signs. Pupils see how to adjust the signs of a fraction two at a time.