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# Unit: Rational expressions and equations

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### About this unit

Rational expressions bring together what we know from fractions with our polynomial skills. They arise in a variety of contexts involving rates, particularly when there are unknowns or changing values in the denominator. We'll model with basic rational expressions, then use the polynomial properties to extend our fraction operations.### Learn

### Practice

- Rational equationsGet 3 of 4 questions to level up!
- Find inverses of rational functionsGet 3 of 4 questions to level up!

### Learn

### Practice

- Mixtures and combined rates word problemsGet 3 of 4 questions to level up!

### Learn

### Practice

- Reduce rational expressions to lowest termsGet 3 of 4 questions to level up!

### Learn

### Practice

- Add & subtract rational expressions (basic)Get 3 of 4 questions to level up!
- Add & subtract rational expressionsGet 3 of 4 questions to level up!

Up next for you:

Level up on all the skills in this unit and collect up to 700 Mastery points!