Adding and Subtracting Rational Expressions
Flashcard
•
Mathematics
•
8th - 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 find the common denominator of rational expressions?
Back
To find the common denominator, factor each denominator and take the highest power of each factor present in any of the denominators.
3.
FLASHCARD QUESTION
Front
What is the first step in adding rational expressions?
Back
The first step is to find a common denominator for the expressions being added.
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 out common factors in the numerator and denominator.
5.
FLASHCARD QUESTION
Front
What is the formula for adding two rational expressions?
Back
If a/b and c/d are two rational expressions, the sum is (ad + bc) / bd.
6.
FLASHCARD QUESTION
Front
What is the importance of factoring in adding and subtracting rational expressions?
Back
Factoring helps to identify common factors and find the least common denominator, which is essential for performing addition or subtraction.
7.
FLASHCARD QUESTION
Front
How do you subtract rational expressions?
Back
To subtract rational expressions, find a common denominator, rewrite each expression with that denominator, and then subtract the numerators.
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