Rational Expressions
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
Standards-aligned
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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 simplify a rational expression?
Back
To simplify a rational expression, factor both the numerator and the denominator and then cancel any common factors.
Tags
CCSS.HSA.APR.D.6
3.
FLASHCARD QUESTION
Front
What is the first step in dividing rational expressions?
Back
The first step is to multiply by the reciprocal of the divisor.
Tags
CCSS.HSA.APR.D.6
4.
FLASHCARD QUESTION
Front
What does it mean to multiply rational expressions?
Back
To multiply rational expressions, multiply the numerators together and the denominators together, then simplify if possible.
Tags
CCSS.HSA.APR.D.7
5.
FLASHCARD QUESTION
Front
What is the formula for adding rational expressions with different denominators?
Back
To add rational expressions with different denominators, find a common denominator, rewrite each expression, and then combine the numerators.
Tags
CCSS.HSA.APR.D.7
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.
Tags
CCSS.HSA.APR.D.6
7.
FLASHCARD QUESTION
Front
How do you find the least common denominator (LCD) of two rational expressions?
Back
The least common denominator is found by determining the least common multiple of the denominators.
Tags
CCSS.HSA.APR.D.7
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