Transcript Add/Subtract Mixed Numbers

U2L10
Add/Subtract Mixed Numbers
Do Now:
1.½ + ¾
2.5/8 + 3/5
3.2/3 + 7/12
4.1/5 + 3/10
Planner:
Add/Subtract Mixed
Numbers
HW: p. 242-243 #8,
15-26, 37, 39, 40
….with Common Denominators
4¼ +5¾
2 Methods
1. Convert to improper fractions
1.
Add fractions
17/4 + 23/4
2.
Convert back to mixed number = 40/4 = 10
2. Leave as mixed numbers
1.
Add Fractions
•¼ + ¾ = 4/4 = 1
2.
Add Whole numbers •4 + 5 = 9
3.
Combine & Simplify
•1 + 9 = 10
… with uncommon denominators
3 1/3 + 4 2/5
2 Methods
1.
Convert to improper fractions
1.
2.
3.
2.
1.
2.
3.
4.
Get common denominator
Add fractions
Convert back to mixed number
Leave as mixed numbers
Add Whole numbers
Get common denominator
Add Fractions
Combine & Simplify
•
•
•
•
•
•
•
•
•
10/3 + 22/5
50/15 + 66/15
116/15
7 11/15
3 1/3 + 4 2/5
3+4=7
1/3 + 2/5 = 5/15 + 6/15
5/15 + 6/15 = 11/15
7 11/15
Practice (in your INB, under the notes for today)
Assignment
p. 242-243 #8, 15-26, 37, 39, 40