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# 9.2 Adding and Subtracting Rational Expressions Least Common Denominator of a polynomial of a polynomial.

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9.2 Adding and Subtracting Rational Expressions Least Common Denominator of a polynomial of a polynomial

Adding fractions What do you need to add or subtract fractions? A common denominator Of 5 and 3, it is 5 times 3 = 15 (Since both are prime numbers) We multiply. Since both numbers divide into 15, it is the Least Common Multiply

What is the L.C.M. Given the terms To find the LCM of the numbers, find there factor multiplication.

What is the L.C.M. The LCM is the highest number of each factor listed from each number.

What is the L.C.M. The LCM is the highest number of each variable listed from each term.

Find the LCM of two polynomial Factor out the polynomial

Find the LCM of two polynomial Factor out the polynomial

Find the LCM of two polynomial Factor out the polynomial

Add the Rational Expressions Simplify What is the LCM of 6 and 14

Add the Rational Expressions Simplify Common denominator 42a 2 b 2 What does 6b times = 42a 2 b 2 What does 14a 2 b 2 times= 42a 2 b 2

Add the Rational Expressions Simplify Common denominator 42a 2 b 2 What does 6b times = 42a 2 b 2 What does 14a 2 b 2 times= 42a 2 b 2

Add the Rational Expressions Simplify

Add the Rational Expressions Simplify

Add the Rational Expressions Simplify

Add the Rational Expressions Simplify

What are the differences between Adding and Multiplying fractions Simplify

What are the differences between Adding and Multiplying fractions Simplify

What are the differences between Adding and Multiplying fractions Simplify

What are the differences between Adding and Multiplying fractions Simplify

What are the differences between Adding and Multiplying fractions Simplify

What are the differences between Adding and Multiplying fractions Simplify

The complex fraction Simplify

The complex fraction Simplify

The complex fraction Simplify

The complex fraction Simplify

The complex fraction Simplify

The complex fraction Simplify

Homework Page 482 – 483 # 15, 19, 25, 29, 33, 37, 41 33, 37, 41

Homework Page 482 – 483 # 16, 20, 24, 26, 28, 30, 34, 36

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