What is a rational expression?
Operations with Rational Expressions

Flashcard
•
Mathematics
•
10th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
A rational expression is a fraction where both the numerator and the denominator are polynomials.
2.
FLASHCARD QUESTION
Front
How do you simplify a rational expression?
Back
To simplify a rational expression, factor both the numerator and the denominator and then cancel any common factors.
3.
FLASHCARD QUESTION
Front
What is the first step in adding or subtracting rational expressions?
Back
The first step is to find a common denominator.
4.
FLASHCARD QUESTION
Front
What is the formula for multiplying two rational expressions?
Back
5.
FLASHCARD QUESTION
Front
What is the formula for dividing two rational expressions?
Back
6.
FLASHCARD QUESTION
Front
What is the difference between a proper and improper rational expression?
Back
A proper rational expression has a degree of the numerator less than the degree of the denominator, while an improper rational expression has a degree of the numerator greater than or equal to the degree of the denominator.
7.
FLASHCARD QUESTION
Front
How do you find the least common denominator (LCD) of two rational expressions?
Back
To find the LCD, factor each denominator and take the highest power of each factor that appears.
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