Rational Expressions
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a rational expression?
Back
A rational expression is a fraction where the numerator and the denominator are both polynomials.
2.
FLASHCARD QUESTION
Front
How do you multiply two rational expressions?
Back
To multiply two rational expressions, multiply the numerators together and the denominators together, then simplify if possible.
3.
FLASHCARD QUESTION
Front
What is the first step in simplifying a rational expression?
Back
The first step is to factor both the numerator and the denominator completely.
4.
FLASHCARD QUESTION
Front
What does it mean to simplify a rational expression?
Back
Simplifying a rational expression means reducing it to its lowest terms by canceling common factors in the numerator and denominator.
5.
FLASHCARD QUESTION
Front
What is the formula for adding rational expressions?
Back
To add rational expressions, find a common denominator, rewrite each expression with that denominator, and then combine the numerators.
6.
FLASHCARD QUESTION
Front
What is the formula for subtracting rational expressions?
Back
To subtract rational expressions, find a common denominator, rewrite each expression with that denominator, and then subtract the numerators.
7.
FLASHCARD QUESTION
Front
How do you find the least common denominator (LCD) of two rational expressions?
Back
The least common denominator is the least common multiple of the denominators of the rational expressions.
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