1. Find the sum or difference. Then simplify if possible.
Example 1
Adding and Subtracting Fractions
Find the sum or difference. Then simplify if possible. 11 8 = 13 11 – + 8 a. – + 13 13 13 3 – = 13 3 – =

2. Find the sum or difference. Then simplify if possible.
Example 1
Adding and Subtracting Fractions
Find the sum or difference. Then simplify if possible. 17 13 = 20 17 – 13 b. – 20 20 20 4 = = 5 1

3. Example 2 7 6 5 – 7 2 3 What is the value of ? + 7 3 – 4 7 4 2 7 3 – 2
Multiple Choice Practice 7 6 5 – 7 2 3
What is the value of ? + 7 3 – 4 7 4 2 7 3 – 2 7
SOLUTION 7 6 5 – + 2 3 =
Write mixed numbers in
expanded form. 5 – + = 3 7 6 2
Commutative property

4. Example 2 4 = – 2 – 7 = 7 4 2 – ANSWER The correct answer is B.
Multiple Choice Practice 4 = – 2 –
Add integers and fractions. 7 =
Write as a mixed number. 7 4 2 –
ANSWER
The correct answer is B.

5. Guided Practice 1. What is the value of – 3 1 2 ? ANSWER 1 –
for Examples 1 and 2
1. What is the value of – 3 1 2 ?
ANSWER 1 –
2. What is the value of + 5 4 2 – 1 ?
ANSWER – 5 3