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Multiplying and Reducing Rational Expressions
Across
5. Any number that can be put in the fraction form is called _____.
7. After performing operations with rational expressions, you must check if the answer is _____
to lowest terms.
10. When adding or subtracting rational expressions, denominators must be _____.
11. To reduce a rational expression, the first step is to _____ the numerator and denominator.
12. The least common denominator must contain all factors of every _____ of the rational
expressions involved.
Down
1. When dividing rational expressions we must invert the _____ fraction and then multiply.
2. If the number is not rational, then it is _____.
3. An example of a _____ is 12 to 7 or
12
.
7
4. Multiplication of rational expressions requires that denominators must be the same. True or
False.
6. You must factor each denominator to find this.
8. For the expression
x5
, if x is replaced with the number 2 the expression will be _____.
x2
9. When dealing with a motion problem you need to use the formula rate (r) times time (t)
equals _____.
Authored by Kamilia Nemri
Spokane Community College
Multiplying and Reducing Rational Expressions-Answer Key
Across
5. Rational
7. Reduced
10. Similar
11. Factor
12. Denominator
Down
1. Second
2. Irrational
3. Ratio
4. False
6. LCD
8. Undefined
9. Distance
Authored by Kamilia Nemri
Spokane Community College