Dividing Fractions by Multiplying by the Reciprocal

The video tutorial explains how to divide whole numbers and fractions by fractions using the concept of reciprocals. It demonstrates the process with models and real-world examples, such as determining how many pillows can be made from a given length of fabric. The lesson emphasizes that dividing by a fraction is equivalent to multiplying by its reciprocal, and provides multiple methods to solve these problems, including using common denominators and models.

What is the reciprocal of 1/3?

• 1/2

• 3

• 2

• 1/3

How many groups of 1/4 are in 1/2?

• 4

• 3

• 2

• 1

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

• 4

• 1

• 3

• 2

If Rashae has 3/4 of a yard of fabric and needs 3/8 for each pillow, how many pillows can she make?

• 1

• 2

• 3

• 4

What is the reciprocal of 3/8?

• 2/3

• 1/3

• 3/8

• 8/3