Dividing Fractions and Mixed Numbers

This lesson teaches how to efficiently divide fractions using an algorithm. The method involves keeping the first fraction, inverting the second fraction, and then multiplying. The video provides examples of dividing whole numbers by fractions, fractions by fractions, and fractions by mixed numbers, demonstrating the 'Keep, Invert, Multiply' (KIM) strategy. The lesson emphasizes converting mixed numbers to improper fractions before applying the algorithm.

What is the main focus of this lesson?

• Multiplying fractions

• Dividing fractions using a model

• Dividing fractions using an algorithm

• Adding fractions

What does the 'K' in the KIM method stand for?

• Keep

• Kick

• Know

• Kite

What is the first step in the KIM method?

• Add the fractions

• Keep the first fraction

• Invert the second fraction

• Multiply the fractions

In the example of dividing 2 by 1/2, what is the result?

• 2

• 3

• 1

• 4

What is the reciprocal of 1/2?

• 1/3

• 1/1

• 2/1

• 1/2

What is the result of multiplying 2 by 2 in the example of dividing 2 by 1/2?

• 3

• 5

• 2

• 4

When dividing 3/4 by 1/2, what is the result?

• 2

• 1 and 1/2

• 1

• 1/2

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

• 7

• 6

• 5

• 4

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

• 3

• 4

• 5

• 6

What is the first step when dividing a mixed number by a fraction?

• Multiply the fractions

• Add the fractions

• Convert the mixed number to an improper fraction

• Invert the mixed number