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Multiply Mixed Numbers
(Chapter 10.3)
Partner Discussion
• How should you go about solving the math problem below? Work with your partner to create an algorithmic AND a visual representation explanation
• 5 x 2 7/8• (Five times two and seven eighths)
What does 5/1 mean?
5
1
Use the Distributive Property
• 5 x 2 7/8 =
• (5 x 2) + (5 x 7/8)
Partner Discussion
How should you go about solving the math problem below? Work with your partner to create an algorithmic AND a visual representation explanation.
2 1/2 x 3 1/5
Can you covert the number to an improper fraction before
multiplying?
Algorithym vs. Visual Representation
• Ann and Sheri are training for a bicycle race. On one day, Ann rides 3 and 1/5 miles. Sheri rides 2 and 1/2 times as far as Ann. How many miles does Sheri ride?
Find 2 1/2 x 3 1/5
Guided Practice
• Rewrite the problem by changing each mixed number into a fraction. Then multiply. Write the answer in simplest form.
• 4 2/3 x 3 2/5
Guided Practice
• Peter needs 1/8 of a cup of butter to make cookies and 1/8 of a cup of butter to make bread. How much butter in all does Peter need to make cookies and bread?
Homework
• PW 10.3
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