Pre-Algebra Lesson 5-4

Pre-Algebra Lesson 5-4 - 5-4 Adding and Subtracting Like...

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Unformatted text preview: 5-4 Adding and Subtracting Like Fractions Objective: Add and subtract fractions with like denominators. 5-Minute Check Solve each equation. 1. a = 6.4 + 16.3 5-Minute Check Solve each equation. 1. a = 6.4 + 16.3 a = 22.7 5-Minute Check Solve each equation. 1. a = 6.4 + 16.3 2. 96.34 – 63.74 = b 5-Minute Check Solve each equation. 1. a = 6.4 + 16.3 2. 96.34 – 63.74 = b b = 32.6 5-Minute Check Solve each equation. 1. a = 6.4 + 16.3 2. 96.34 – 63.74 = b 3. c = 5.3 + (-5.6) – (3.4) 5-Minute Check Solve each equation. 1. a = 6.4 + 16.3 2. 96.34 – 63.74 = b 3. c = 5.3 + (-5.6) – (3.4) c = -3.7 5-Minute Check Solve each equation. 1. a = 6.4 + 16.3 2. 96.34 – 63.74 = b 3. c = 5.3 + (-5.6) – (3.4) Simplify each expression. 4. 7.4n – 9.3n 5-Minute Check Solve each equation. 1. a = 6.4 + 16.3 2. 96.34 – 63.74 = b 3. c = 5.3 + (-5.6) – (3.4) Simplify each expression. 4. 7.4n – 9.3n -1.9n 5-Minute Check Solve each equation. 1. a = 6.4 + 16.3 2. 96.34 – 63.74 = b 3. c = 5.3 + (-5.6) – (3.4) Simplify each expression. 4. 7.4n – 9.3n 5. 6.3m + 4 – 1.1m 5-Minute Check Solve each equation. 1. a = 6.4 + 16.3 2. 96.34 – 63.74 = b 3. c = 5.3 + (-5.6) – (3.4) Simplify each expression. 4. 7.4n – 9.3n 5. 6.3m + 4 – 1.1m 5.2m + 4 5-4 Adding and Subtracting Like Fractions Adding and Subtracting Fractions with Like Denominators For fractions a/c and b/c, where c ≠ 0: 1. a/c + b/c = (a + b)/c and 2. a/c – b/c = (a - b)/c. 5-4 Adding and Subtracting Like Fractions Example Solve each equation. a. m = 3/8 + 7/8 5-4 Adding and Subtracting Like Fractions Example Solve each equation. a. m = 3/8 + 7/8 b. n = 12/10 - 14/10 5-4 Adding and Subtracting Like Fractions Example Solve each equation. a. m = 3/8 + 7/8 b. n = 12/10 - 14/10 c. q = 43/8 – 2 7/8 5-4 Adding and Subtracting Like Fractions Connection: Simplify 31/8n + 45/8n – 61/8n – (-107/8n) 5-4 Adding and Subtracting Like Fractions Assignment: 12 - 34 even, 36 - 48 all Starting on page: 242 ...
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Pre-Algebra Lesson 5-4 - 5-4 Adding and Subtracting Like...

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