Fraction and Whole Number Division Techniques

This video tutorial covers lesson 8.4 on fraction and whole number division using multiplication. It explains how to divide whole numbers by unit fractions by multiplying the whole number by the fraction's denominator. The concept of reciprocals is introduced, showing how whole numbers can be written as fractions and used in division. The video also discusses dividing fractions by whole numbers using reciprocals and compares the size of quotients to dividends. Practical examples, such as dividing sugar and ribbon, are provided to illustrate these concepts.

What is the result of dividing 3 by 1/4?

• 3

• 12

• 1/12

• 4

How many parts do you get when you divide 2 whole rectangles into thirds?

• 9

• 6

• 2

• 3

What is the reciprocal of 3/1?

• 1/1

• 3/3

• 3

• 1/3

If you multiply 10 by its reciprocal, what is the result?

• 1

• 10

• 0.1

• 100

What is the result of dividing 1/4 by 2?

• 1/4

• 1/16

• 1/8

• 1/2

When dividing a fraction by a whole number greater than 1, how does the quotient compare to the dividend?

• Less than the dividend

• Greater than the dividend

• Cannot be determined

• Equal to the dividend

What is the result of dividing 6 by 1/3?

• 1/18

• 18

• 3

• 2

How many parts do you get when you divide 4 by 1/8?

• 1/32

• 32

• 8

• 4

Mrs. Kim has 6 cups of brown sugar and divides it into bowls containing 1/2 cup each. How many bowls does she need?

• 3

• 6

• 12

• 18

Sophia has 4 yards of purple ribbon and cuts it into pieces of 1/6 yard each. How many pieces does she get?

• 24

• 6

• 4

• 36