Multiplying Mixed Numbers with Models

This video tutorial covers multiplying mixed numbers using models. It begins with multiplying fractions by whole numbers, then extends to multiplying fractions by mixed numbers. The tutorial provides examples and explains the importance of denominators and numerators in determining the number of pieces and rows to consider. It also discusses using common denominators to simplify calculations. The lesson concludes with a summary of the steps involved in multiplying mixed numbers.

What is the first step when multiplying a fraction by a whole number?

• Draw the first factor

• Draw the second factor

• Multiply the denominators

• Multiply the numerators

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

If you have 3 groups and you need to find half of them, how many pieces will you have?

• 2

• 1.5

• 1

• 3

Tags

CCSS.1.G.A.3

When multiplying 3/4 by 3, into how many pieces should you cut the whole?

• 5

• 4

• 3

• 2

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

What is the result of multiplying 3/4 by 3?

• 1.5

• 2.25

• 2.5

• 2.75

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

When multiplying a fraction by a mixed number, what should you draw first?

• The denominator

• The product

• The fraction

• The mixed number

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

How many pieces do you cut the whole into when multiplying 2/3 by 2.5?

• 3

• 5

• 2

• 4

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

What is the result of multiplying 2/3 by 2.5?

• 1.5

• 1.66

• 1.33

• 1.75

Tags

CCSS.6.NS.B.3

When using common denominators, what is the main advantage?

• It is faster

• It is more accurate

• All pieces are the same size

• It requires no simplification

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the result of multiplying 3/4 by 2 and 2/3 using common denominators?

• 3

• 2.5

• 2

• 1.5

Tags

CCSS.5.NF.B.6

What is a disadvantage of using common denominators?

• You have to simplify at the end

• It is less accurate

• It is more complex

• It takes longer

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2