All of the students have access to videos via their Big Ideas Math account. Each video shows a new example of every example given in the book and within the notes given in class. The following are other websites you might feel are helpful.
Comparing Fractions - http://www.khanacademy.org/math/arithmetic/fractions/v/comparing-fractions
Converting mixed numbers to improper fractions - http://www.khanacademy.org/math/arithmetic/fractions/v/converting-mixed-numbers-to-improper-fractions
Converting improper fractions to mixed numbers - http://www.khanacademy.org/math/arithmetic/fractions/v/changing-an-improper-fraction-to-a-mixed-number
Adding Fractions with same denominators - http://www.khanacademy.org/math/arithmetic/fractions/v/adding-fractions-with-like-denominators
Finding the Least Common Denominator - http://www.khanacademy.org/math/arithmetic/fractions/v/finding-common-denominators