# Evaluate an Expression in the Form (a-b)/(cd) (Example)

There's no substitute for learning through examples. A brief YouTube video shows how to evaluate an algebraic expression through substitution. The expression of interest is in the form (*a*-*b*)/(*cd*), where the values of the variables are positive and negative integers.

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CCSS:
Adaptable

##### Instructional Ideas

- Have students create similar problems for classmates to evaluate

##### Classroom Considerations

- Pupils should already know how to evaluate an expression
- Learners must be able to reduce fractions

##### Pros

- Step-by-step solutions are easy to follow

##### Cons

- Very limited in scope

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