There's a fine line between a numerator and a denominator! Learners find common denominators in order to add and subtract rational expressions. Examples include addition, subtraction, and complex fractions.

Concepts

addition rational expressions, subtraction rational expressions, rational expressions, simplify rational expressions, equivalent expressions, common denominators

Show More Show Less

Additional Tags

math

Show More Show Less

Instructional Ideas

• Use board work with pupils to allow for frequent understanding checks
• Begin with fraction work to review the methods of finding common denominators

Classroom Considerations

• Builds from the previous lesson in a 42-part series

Pros

• Resources include detailed teaching suggestions
• Provides a set of practice problems with an answer key

Cons

• None

Common Core

HSA-APR.D.6 HSA-APR.D.7 MP7