January 31, 2013
Agenda
- Add/Subtract Practice Do Now
- Add/Subtract Exit Slip
- Complex Fractions
- Worksheet/Mini Project
January 31, 2013
House Cleaning (aka
Important Reminders)
- Mastery Quiz
Standard 7.0 (Simplifying, Multiplying,
Dividing, Adding, Subtracting, Complex Fractions)
January 31, 2013
Learning Target: 7F – SWBAT simplify complex rational
expressions (complex fractions)
Standard: 7.0* Students add, subtract, multiply,
divide, reduce, and evaluate rational expressions
with monomial and polynomial denominators and
simplify complicated rational expressions, including
those with negative exponents in the denominator.
Date:
January 31, 2013
What is this asking us to do? Is there another way to set this up to make it easier to work with?
9
8
5
4
January 31, 2013
Terms, Equations, Notes
Complex Fraction:
Fractions in fractions son!
Steps:
1) Simplify both the numerator
and the denominator to single
rational expressions (add or
subtract them)
2) Multiply the numerator by the
reciprocal of the denominator
(this is really just a division
problem!)
3) Simplify if possible
Steps:
1) Factor all numerators and
denominators completely
2) Find LCD of all terms!!!
3) Multiply each term by LCD
4) Simplify
Procedures, Examples
Example 1
January 31, 2013
What operation is occurring between a
numerator and a denominator in a fraction?
1) Multiplication
2) Division
3) Addition
January 31, 2013
Example 2
Simplify
1
1 - 1
x
January 31, 2013
What operations/skills are we using from this
unit when we work with Complex Fractions?
Discuss them with a partner and put them in
order. Make sure you are able to explain how to
perform each skill/explain what is essential for
each concept.
January 31, 2013
Example 3
Simplify
3
2
x
+
1
x-2
January 31, 2013
Thinking Deeply.....
Think on your own for 30 seconds. You may refer to your notes, steps and examples. Then I will ask students
to respond to the class.
Write your own complex fraction using just
numbers (no variables) and solve!
The complex number should have both an
adding and a subtracting component (one in the
numerator and one in the denominator)
January 31, 2013
HW
Please Copy into your notebook
Title: "Complex Fractions HW"
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