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Lesson Menu Five-Minute Check (over Lesson 9–4) Main Idea Example 1:Write a Decimal as a Fraction Example 2:Write a Decimal as a Fraction Example 3:Write a Decimal as a Fraction
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Main Idea/Vocabulary I will relate decimals to fractions.
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Example 1 Write a Decimal as a Fraction A cashier weighs two apples. The scale reads 0.35 pound. Write the weight of the apples as a fraction in simplest form. Step 1 Shade a model of 0.35. THINK 0.35 is 35 hundredths. Step 2 Write a fraction with 100 as the denominator. 0.35 = 35 100
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Example 1 Write a Decimal as a Fraction Step 3 If necessary, simplify the fraction. = 35 100 35 ÷ 5 100 ÷ 5 = 7 20 Divide by the GCF, 5. Simplify. Answer: So, the apples weigh pound. 7 20
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1.A 2.B 3.C 4.D Example 1 C. 55 100 A. 5 20 B. 11 20 D. 11 55 Write 0.55 as a fraction in simplest form.
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Example 2 Write a Decimal as a Fraction Write 0.2 as a fraction in simplest form. Step 1 Shade a model of 0.2. Step 2 Write a fraction with 10 as the denominator. 0.2 = 2 10
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Example 2 Write a Decimal as a Fraction Step 3 If necessary, simplify the fraction. = 2 10 2 ÷ 2 10 ÷ 2 = Divide by the GCF, 2. Simplify. 1 5
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1.A 2.B 3.C 4.D Example 2 A. 3 5 Write 0.6 as a fraction in simplest form. B. 2 3 C. 3 4 D. 1 2
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Example 3 Write a Decimal as a Fraction Write 0.003 as a fraction in simplest form. Shade a model of 0.003. Write a fraction with 1,000 as the denominator. 0.003 = 3 1,000 Answer:
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1.A 2.B 3.C 4.D Example 3 A. 3 500 C. 1,000 7 B. 1 250 D. 14 2,000 Write 0.007 as a fraction in simplest form.
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End of the Lesson End Lesson
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Resources Five-Minute Check (over Lesson 9–4) Image Bank Math Tool Chest Compare Fractions
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1.A 2.B 3.C 4.D Five Minute Check 1 (over Lesson 9–4) C. 1 3 A. 3 4 Write in simplest form. If the fraction is already in simplest form, write simplified. 15 45 D. simplified B. 5 9
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1.A 2.B 3.C 4.D Five Minute Check 2 (over Lesson 9–4) A. 2 5 D. 4 10 Write in simplest form. If the fraction is already in simplest form, write simplified. 12 30 C. simplified B. 3 4
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1.A 2.B 3.C 4.D Five Minute Check 3 (over Lesson 9–4) D. simplified Write in simplest form. If the fraction is already in simplest form, write simplified. 7 26 A. 1 13 B. 14 26 C. 21 26
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1.A 2.B 3.C 4.D Five Minute Check 4 (over Lesson 9–4) Write in simplest form. If the fraction is already in simplest form, write simplified. 28 42 A. 4 6 C. 12 21 D. simplified B. 2 3
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