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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 x5 , if x is replaced with the number 2 the expression will be _____. x2 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