Warm Up: Find the Least Common Denominator (LCM).
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Warm Up: Find the Least Common Denominator (LCM)
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Transcript of Warm Up: Find the Least Common Denominator (LCM).
Warm Up: Find the Least Common Denominator (LCM)
Warm Up: Find the Least Common Denominator (LCM)
9-5 Addition, Subtraction, and Complex Fractions
9-5 Addition, Subtraction, and Complex Fractions
Ex 1: Perform the indicated operationEx 1: Perform the indicated operation
a.
b.
Note: In order to add or subtract 2 fractions, we must have the SAME DENOMINATOR.
Ex 2: Find the LCD Ex 2: Find the LCD
a.
b.
Ask yourself: Do the denominators have any factors in common?
In this example, there are no common factors.
(You can leave it “unsimplified.”)
Factor!
Note: Use ALL of the factors!
Ex 3: Perform the indicated operation, then simplify
Ex 3: Perform the indicated operation, then simplify
Frist: Find the LCD
Multiply each fraction by the factors it doesn’t already have.
Ex 4: Perform the indicated operation and simplify.
Ex 4: Perform the indicated operation and simplify.
Exit Slip: Perform the indicated operation and simplify.
Exit Slip: Perform the indicated operation and simplify.
