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PPT – 9.2 Adding and Subtracting Rational Expressions PowerPoint presentation | free to download - id: 6a1a9d-YTBjZ

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9.2 Adding and Subtracting Rational Expressions

- Least Common Denominator
- 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 42a2b2
- What does 6b times 42a2b2
- What does 14a2b2 times 42a2b2

Add the Rational Expressions

- Simplify
- Common denominator 42a2b2
- What does 6b times 42a2b2
- What does 14a2b2 times 42a2b2

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

Homework

- Page 482 483
- 16, 20, 24, 26,
- 28, 30, 34, 36