1. Tuesday, October 1st Warm Up
Please pick up a worksheet
Complete side 3-8
This is assignment #17
We will go over it once everyone is done!

2. Adding/Subtracting Fraction Notes
Assignment #20
Adding/Subtracting Fraction Notes

3. Vocabulary Like fractions: Fractions with the same denominator.
Unlike fractions: Fractions with different denominators.
Least Common Denominator (LCD): Smallest common denominator of two or more fractions.

4. Adding/Subtracting with Common Denominators: Like Fractions
Step 1: Keep the denominator the same.
Step 2: Add/Subtract the numerators.
Step 3: Simplify your answer.

5. Examples

6. Warm Up:

7. Adding/Subtracting Fractions with Unlike Denominators
Step 1: Find a common denominator. Step 2: Write equivalent fractions using that denominator. **If you change the denominator, you have to change the numerator too** Step 3: Add/Subtract the numerators. Step 4: Simplify

8. Examples

9. Word Problem A carpenter begins with a board that is
inches thick. She removes of an inch from its
thickness. How thick is the board now?

10. Discuss
What needs to be the same before we can add or subtract fractions?
What part of the fractions do we actually add or subtract when we add or subtract fractions?

11. Practice

12. Brain Pop
Adding/ Subtracting

13. Practice 3-6