Dividing Whole Numbers by Unit Fractions

This video tutorial teaches how to divide whole numbers by unit fractions using a word problem about filling a container with sugar. It explains the concept of reciprocals and provides a visual representation of the division process. The tutorial also outlines the steps to solve such problems, emphasizing the conversion of division into multiplication by using reciprocals.

What is the main objective of this lesson?

• To learn how to multiply fractions

• To learn how to divide whole numbers by unit fractions

• To learn how to add fractions

• To learn how to subtract fractions

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

How many cups of sugar does Kara's container hold?

• Five cups

• Six cups

• Four cups

• Three cups

Tags

CCSS.1.OA.A.1

What is the capacity of the scoop Kara is using?

• One cup

• One-fourth of a cup

• One-third of a cup

• One-half of a cup

Tags

CCSS.1.G.A.3

What mathematical operation do you use to find out how many scoops Kara needs?

• Addition

• Division

• Multiplication

• Subtraction

Tags

CCSS.3.OA.A.3

How many sections do you get when you divide five cups into thirds?

• 15 sections

• 12 sections

• 18 sections

• 10 sections

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

What is the equivalent multiplication expression for five divided by one-third?

• 5 times 3

• 5 times 4

• 5 times 2

• 5 times 1

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

What does the term 'reciprocal' mean in mathematics?

• Switching the numerator and denominator

• Subtracting the numerator from the denominator

• Adding the numerator and denominator

• Multiplying the numerator and denominator

What is the reciprocal of one-third?

• 3/1

• 1/3

• 2/3

• 3/2

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

• Rewrite the first number

• Change the division sign to a multiplication sign

• Find the reciprocal of the fraction

• Solve the multiplication problem

How many one-third scoops does Kara need to fill a five-cup container?

• 15 scoops

• 12 scoops

• 10 scoops

• 18 scoops

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C