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Multiplying and Dividing Rationals  Problem 7
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
A negative exponent changes where a value is in a fraction: a negative exponent in the top of a fraction moves the term to the bottom and the exponent becomes positive, and a negative exponent in the bottom of a fraction moves the term to the top and the exponent becomes positive. Here, we do examples where we get rid of the negative exponents first, and then simplify the rational products from there. Remember that you can cancel entire factors that are the same in top and bottom.
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Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
Your tutorials are good and you have a personality as well. I hope you have more advanced college level stuff, because I like the way you teach.”
Thanks alot for such great lectures... I never found learning this easier ever before... keep up the great work.... :)”
You seem so kind, it's awesome. Easier to learn from people who seem to be rooting for ya!' thanks”
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Sample Problems (10)
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Multiplying and Dividing Rationals
Problem 1 5,745 viewsMultiply and simplify your answer.
3xy² ⋅ 4x³z 10y³ x³z³ 
Multiplying and Dividing Rationals
Problem 2 4,490 viewsMultiply and simplify your answer.
x + 3 (5x² + 10x) 5x² 
Multiplying and Dividing Rationals
Problem 3 4,241 viewsMultiply and simplify your answer.
m² + 5m + 6 ⋅ m² − 2m − 3 m − 3 m² + 3m + 2 
Multiplying and Dividing Rationals
Problem 4 3,908 viewsDivide and simplify your answer.
5t² + 10t − 15 ÷ 2t² + 7t + 3 5 − 6t + t² 4t² − 8t − 5 
Multiplying and Dividing Rationals
Problem 5 524 views 
Multiplying and Dividing Rationals
Problem 7 591 views 
Multiplying and Dividing Rationals
Problem 8 507 views 
Multiplying and Dividing Rationals
Problem 9 508 views 
Multiplying and Dividing Rationals
Problem 10 521 views 
Multiplying and Dividing Rationals
Problem 11 478 views
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