Rational Equations + Expressions

Simplifying and solving rational functions

Steps!

1. Make the sign multiplication if it's not already. If you have a division problem, switch the numerator and the denominator on the second term so you can change the division sign to a multiplication sign.

2. Factor any polynomials that are factorable.

3. Multiply across the numerator and denominator!

4. Combine like terms and factor further if possible.

5. Finally, cancel out any factors that appear both in the numerator and the denominator.

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Part 1 of a 3 Part series on this

Rational Expressions #6 - Multiplying and Dividing 1 of 3
If you think this video is helpful, go to youtube for more!

Simplifying (Addition + Subtraction)

Steps!

1. Look for a Least Common Multiple to get a common denominator

2. If you can't think of one, just multiply each denominator by each other and then use that number to multiply with the entire equation!

3. Once your denominators are cancelled out, you can combine like terms and reduce further.

4. Just remember to always distribute the negative (if you're doing subtraction) to all the terms!

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A Video!

Rational Expressions: Adding and Subtracting. Ex 1

Solving (Multiplying + Dividing)

Steps!

1. Make the sign multiplication if it's not already. If you have a division problem, switch the numerator and the denominator on the second term so you can change the division sign to a multiplication sign.

2. Factor any polynomials (in the denominators) that are factorable.

3. Find a Least Common Multiple so you can cancel out the denominators.

4. If you can't think of one, just multiply each denominator by each other and then use that number to multiply with the entire equation!

5. The denominators should cancel out.

6. Finally, solve for your variable!

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Solving (Addition + Subtraction)

1. Look for a Least Common Multiple to cancel out the denominators.


2. If you can't think of one, just multiply each denominator by each other and then use that number to multiply with the entire equation!

3. Once your denominators are cancelled out, you can combine like terms and reduce further.

4. Just remember to always distribute the negative (if you're doing subtraction) to all the terms!

5. Finally, solve for your variable!

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A Video!

Algebra 2 - Solving Rational Equations

More Fun Stuff!

Mathlete Tournament

Thursday, Dec. 31st, 9pm

90 Hayden Rowe Street

Hopkinton, MA

Come to Hopkinton High School on New Year's Eve at 9:00 to compete with math legends such as Mrs. Govoni, Mr. Greco, Mrs. Crisafulli, and Mrs. Hall! Be there or be square.

Upcoming Tests + Quizzes

Quiz 4: Day 44 (December 7th or 8th)

Test 2: Day 46 (Date TBA)

In case you ever need a FUN MATH VIDEO!!!

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