Adding and Subtracting Mixed Numbers 6.1.3.4 Solve real-world and mathematical problems requiring arithmetic with decimals, fractions, and mixed numbers

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.

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.

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

Example Time… Find the sum. 7 8 4 9 4 1 1 4 2 1 3 3 5 3 = = + + 8 9 1 10 Add the whole numbers.

More Examples… Find the sum or difference. 3 5 10 6 5 6 10 3 = 4 = 12 9 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

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 + 2 3/7 = 4 8/9 - 2 1/9 = 1/4 3 3/5 1/8 6 2 7/9

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.

Daily Check 6.4 in your math notebook