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Lesson Menu Five-Minute Check (over Lesson 8–3) Main Idea Example 1:Write a Mixed Number as an Improper Fraction Example 2:Rename a Mixed Number
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Main Idea/Vocabulary I will write mixed numbers as improper fractions.
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Example 1 Write a Mixed Number as an Improper Fraction The average rainfall in Austin, Texas for the month of June is 3 inches. Write 3 inches as an improper fraction. 1 2 1 2 Step 1 To find how many halves are in 3, multiply the whole number, 3, by the denominator, 2. 3 × 2 = 6
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Example 1 Write a Mixed Number as an Improper Fraction 2 Step 2 There is one more half. Add the numerator. (3 × 2) + 1 = 7 Step 3 Write the sum over the original denominator, 2. (3 × 2) + 1 = 7 2 Answer: So, 3 inches = inches. 1 2 7 2
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1.A 2.B 3.C 4.D Example 1 C. 4 1 D. 7 3 B. 8 3 A. 13 3 Write 4 as an improper fraction. 1 3
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Example 2 Rename a Mixed Number Write 6 as an improper fraction. 1 5 Step 1 Multiply the whole number by the denominator. 6 × 5 = 30 Step 2 Add the numerator.(6 × 5) + 1 = 31 Step 3 Write the sum over the original denominator. (6 × 5) + 1 = 31 55 Answer: So, 6 =. 31 5 1 5
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Example 2 You can check the reasonableness of this answer by using models. Rename a Mixed Number
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1.A 2.B 3.C 4.D Example 2 A. 37 5 C. 7 3 B. 14 5 D. 25 7 Write 7 as an improper fraction. 2 5
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End of the Lesson End Lesson
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Resources Five-Minute Check (over Lesson 8–3) Image Bank Math Tool Chest Fractions on a Number Line
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1.A 2.B 3.C 4.D Five Minute Check 1 (over Lesson 8–3) Solve. Use logical reasoning. The school marching band has 15 students playing brass instruments, 12 students playing percussion instruments, and 23 students playing woodwind instruments. Four students play all three, 2 students play both brass and percussion instruments, and 2 students play both brass and woodwind instruments. No students play both percussion and woodwind instruments. How many students play only woodwind instruments? A.21 students B.17 students C.19 students D.15 students
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