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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 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 Planner: Add/Subtract Mixed Numbers HW: p. 242-243 #8, 15-26, 37, 39, 40
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….with Common Denominators 4 ¼ + 5 ¾ 2 Methods 1. Convert to improper fractions 1. Add fractions 2. Convert back to mixed number 2. Leave as mixed numbers 1. Add Fractions 2. Add Whole numbers 3. Combine & Simplify 17/4 + 23/4 = 40/4 = 10 ¼ + ¾ = 4/4 = 1 4 + 5 = 9 1 + 9 = 10
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… with uncommon denominators 2 Methods 1. Convert to improper fractions 1. Get common denominator 2. Add fractions 3. Convert back to mixed number 2. Leave as mixed numbers 1. Add Whole numbers 2. Get common denominator 3. Add Fractions 4. Combine & Simplify 3 1/3 + 4 2/5 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
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Practice (in your INB, under the notes for today)
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Assignment p. 242-243 #8, 15-26, 37, 39, 40
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