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Presentation transcript:

Splash Screen

Five-Minute Check (over Lesson 10–7) Main Idea Example 1: Subtract Mixed Numbers Example 2: Subtract Mixed Numbers Concept Summary: Subtract Mixed Numbers Lesson Menu

I will subtract mixed numbers. Main Idea/Vocabulary

Subtract Mixed Numbers Omar has 3 cups of milk in a container. He drinks 1 cup. How much milk is left? 7 8 5 Find 3 – 1 . 7 8 5 Estimate 4 – 2 = 2 Example 1

Subtract Mixed Numbers Step 1 Subtract the fractions. 3 7 8 1 5 8 – 2 8 Example 1

Subtract Mixed Numbers Step 2 Subtract the whole numbers. – 3 7 8 1 5 2 2 Example 1

Subtract Mixed Numbers Step 3 Simplify 2 . 2 8 2 8 = 1 4 Divide the numerator and denominator by the GCF, 2. Check for Reasonableness 2 ≈ 2 1 4 Answer: So, 2 cups of milk were left. 1 4 Example 1

Leon has 4 cups of juice in a container. He drinks 1 cups Leon has 4 cups of juice in a container. He drinks 1 cups. How much juice is left? Which shows the answer in simplest form? 5 6 1 A. 3 cups 2 3 B. 3 cups 4 6 A B C D C. 2 cups 1 4 D. 1 cups 1 2 Example 1

Subtract Mixed Numbers Elm Street is 4 miles long and Oak Street is 2 miles long. How much longer is Elm Street than Oak Street? 9 10 2 5 Find 4 – 2 . 9 10 2 5 Estimate 5 – 2 = 3 Example 2

Subtract Mixed Numbers Step 1 Write the problem. Step 2 Rename the fractions using the LCD. Step 3 Subtract the fractions and mixed numbers. Example 2

Subtract Mixed Numbers Step 4 Simplify. 2 5 10 = 1 Answer: So, Elm Street is 2 miles longer than Oak Street. 1 2 Example 2

Find 7 – 6 in simplest form. A. 6 B. 2 C. 1 D. 1 10 12 2 3 8 12 8 12 2 Example 2

KC 1

End of the Lesson End Lesson

Five-Minute Check (over Lesson 10–7) Image Bank Math Tool Chest Add Like Fractions Resources

Find 3 + 2 . Write in simplest form. (over Lesson 10–7) Find 3 + 2 . Write in simplest form. 1 7 4 A. 5 5 7 B. 5 5 14 C. 5 3 5 A B C D D. 5 2 7 Five Minute Check 1

A. 9 B. 9 C. 9 D. 9 7 8 2 3 3 4 5 8 (over Lesson 10–7) A B C D Five Minute Check 2

A. 9 B. 9 C. 9 D. 9 6 9 2 3 8 18 1 6 (over Lesson 10–7) A B C D Five Minute Check 3

A. 11 B. 11 C. 12 D. 12 4 3 4 1 4 (over Lesson 10–7) A B C D Five Minute Check 4

A. 14 B. 14 C. 15 D. 15 7 5 7 10 1 5 2 5 (over Lesson 10–7) A B C D Five Minute Check 5

A. 23 B. 23 C. 24 D. 24 1 4 15 12 1 4 3 4 (over Lesson 10–7) A B C D Five Minute Check 6

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