Our discussion about rational expressions moved into multiplying the expressions together. Keep in mind that expressions with variables in the denominator will always have some excluded values that must be declared when simplifying or solving.
Sections Covered in Textbook
1) 8-2: Multiplying Rational Expressions (pages 311-314)
Video Tutorials
1) Multiplying Rational Expressions
http://www.virtualnerd.com/algebra-1/rational-expressions-functions/multiply-divide/multiply/multiply-example
* Not a video, but a good written tutorial can be found here:
http://www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/col_alg_tut9_mulrat.htm
Assignments
1) Pages 313-314 #'s 9-39 1st column only; 43, 44, 45.
**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK
Pre-Algebra
Today we discussedOur discussion moved on to multiplying rational numbers. When we multiply rationals (fractions) we have several steps to remember:
- First, turn all mixed numbers and whole numbers into improper fractions.
- Simplify if possible by dividing out common factors from the numerator and denominator.
- Multiply the numerators together.
- Multiply the denominators together.
- Simplify, if necessary.
Sections Covered in Textbook
1) 6-3: Rationals: Multiplying Fractions (pages 211-214)
Video Tutorials
1) How to Multiply a Whole Number by a Fraction
http://www.virtualnerd.com/middle-math/multiplying-dividing-fractions/multiply/whole-number-by-fraction-multiplication
2) How to Multiply Mixed Numbers
- http://www.virtualnerd.com/pre-algebra/rational-numbers/fraction-division-multiplication/multiply-fractions/multiply-mixed-numbers-example
- https://www.khanacademy.org/math/arithmetic-home/arith-review-fractions/5th-mult-mixed-num/v/multiplying-mixed-numbers
Assignments
1) Adding Fractions Worksheet.
Download Worksheet here.
2) Pages 213-214 #'s 15-41 odd
**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK
OPTIONAL!
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