1. Adding Mixed Numbers

2. Adding Mixed Numbers Video
Click on the following link to watch a video about adding Mixed Numbers.

3. Adding Mixed Numbers Find the sum. 4 9 1 1 9 + 3
Rewrite the fraction using LCD if denominators are different. 4 9 1 1 9
2. Add or subtract the fractions,
then the whole numbers. + 3
3. Simplify if possible.
In this problem, the denominators are the same, so begin with step 2.

4. Adding Mixed Numbers Find the sum. 4 9 1 1 9 + 3 5 9 4
Rewrite the fraction using LCD if denominators are different. 4 9 1 1 9
2. Add or subtract the fractions,
then the whole numbers. + 3
3. Simplify if possible. 5 9 4
In this problem, the denominators are the same, so begin with step 2.

5. Let’s Do Another Example!
Find the sum. 4 9 1 1 3 3 + +

6. Let’s Do Another Example!
First we re-write the problem with common denominators. 3 1 4 9 +
X 3 4 7 9

7. Let’s Do Another Example!7 8 4 1 4 5 +

8. Let’s Do Another Example!7 8 7 8 4 4
X 2 1 4 8 2 5 5 + +
X 2

9. Let’s Do Another Example!7 8 7 8 4 4
X 2 1 4 8 2
Rename the Improper Fraction 5 5 + +
X 2 1 8 9 8 9 = 1

10. Let’s Do Another Example!7 8 7 8 4 4
X 2 1 4 8 2 5 5 + +
X 2 1 8 9 8 9 = 1 1 8 10
Add the whole numbers.

11. Now You Try! 3 5 + 7 9 10 5 1 9 + 6

12. Now You Try - Answers! 3 5 + 7 9 10 15 = 1 2 11 5 1 9 + 6 11 17 18