Understanding Division of Whole Numbers by Mixed Numbers

The video tutorial explains how to divide a whole number by a mixed number, specifically 4 divided by 1 1/2. It covers converting mixed numbers to improper fractions, rewriting division as multiplication using reciprocals, and simplifying the result. The tutorial also demonstrates converting the result back to a mixed number and uses a visual model to enhance understanding of the division process.

What is the first step in dividing a whole number by a mixed number?

• Convert the mixed number to a decimal.

• Convert both numbers to improper fractions.

• Multiply the whole number by the mixed number.

• Add the whole number and the mixed number.

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CCSS.6.NS.A.1

How do you rewrite a division problem involving fractions?

• By multiplying by the reciprocal of the divisor.

• By subtracting the fractions.

• By dividing by the reciprocal of the divisor.

• By adding the fractions.

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CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

What is the result of multiplying 4/1 by 2/3?

• 4/3

• 6/3

• 8/3

• 2/3

How do you convert an improper fraction to a mixed number?

• By adding the numerator and the denominator.

• By dividing the numerator by the denominator.

• By multiplying the numerator by the denominator.

• By subtracting the denominator from the numerator.

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What does the fraction bar in a fraction represent?

• Subtraction

• Addition

• Division

• Multiplication

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CCSS.5.NF.B.6

Why is it important to simplify fractions before multiplying?

• To change the fraction to a mixed number.

• To make the numbers smaller.

• To ensure the fraction is in simplest form.

• To make the numbers larger.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

In the visual model, what does each rectangle represent?

• A mixed number

• A fraction

• A whole number

• A unit of 1

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CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

How many copies of 1 1/2 are in 4 according to the model?

• Two and two-thirds copies

• Two and a half copies

• Two copies

• One copy

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the significance of the two halves left in the model?

• They represent no part of a copy of 1 1/2.

• They represent a full copy of 1 1/2.

• They represent two-thirds of a copy of 1 1/2.

• They represent one-third of a copy of 1 1/2.

What is the final quotient of 4 divided by 1 1/2?

• 2 1/2

• 2

• 2 2/3

• 3