Adding and Subtracting rational expressions

Adding and Subtracting rational expressions

  1. Rewrite the fractions with their LCD (lowest common denominator)

      1          and        6 

    3x – 9y         5x – 15y

  2. Simplify

      n      

    2 – n     n – 2

  3. Simplify

    10     +    

    3b + 5     7b – 2

  4. Simplify

      10       –   1 

    x² – 16       x + 4

  5. Simplify

      2y             –     1 

    y² – 9y + 20      y – 4