1. Adding and Subtracting Mixed Numbers
Solve real-world and mathematical problems requiring arithmetic with decimals, fractions, and mixed numbers

2. I can… Add and subtract mixed numbers. Self Assessment
5- I can do it without help & teach others.
4- I can do this with no help, but I don’t know if I can explain it.
3- I can do this with a little help.
2- I can do this with a lot of help!
1- I don’t have a clue.

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

4. Subtracting Mixed Numbers
Find the Difference.
X 6 3 4 18 = 3 17 20 17 20 1 24
X 6 1 6
X 4 4 3 5
X 4 12 = 1 = - - 1 24
X 4 20
X 4 14 24 7 12 5 20 1 4 2 = = 7 12 2

5. Example Time… Find the sum. 7 8 4 9 4 1 1 4 2 1 3 3 5 3 = = + + 8 9 110
Add the whole numbers.

6. More Examples… Find the sum or difference. 3 5 10 6 5 6 10 3 = 4 = 129 10 9 10 1 12 1 12 7 1 + - 15 10 5 10 1 2 3 4 9 12 10 = 1 = 3 = 1 2 3 4 11 3

7. Practice… 1 3/8 - 11/8 = 1/4 2 2/5 + 1 1/5 = 1 7/8 – 1 6/8 = 3 3/5
3 4/ /7 =
4 8/ /9 =
1/4
3 3/5
1/8 6
2 7/9

8. I can… Add and subtract mixed numbers. Self Assessment
5- I can do it without help & teach others.
4- I can do this with no help, but I don’t know if I can explain it.
3- I can do this with a little help.
2- I can do this with a lot of help!
1- I don’t have a clue.

9. Daily Check 6.4
in your math notebook