Dividing Whole Numbers by Mixed Numbers

In this video, Mr. J explains how to divide whole numbers by mixed numbers using two examples. The process involves converting numbers to improper fractions, applying the 'keep, switch, flip' method, and simplifying the results. The video also compares using cancellation to simplify before multiplying versus simplifying after. The final answers are presented as mixed numbers.

What is the first step in dividing whole numbers by mixed numbers?

• Add the whole numbers together

• Multiply the whole numbers

• Change mixed numbers to improper fractions

• Convert mixed numbers to decimals

In the KSF method, what does the 'S' stand for?

• Subtract

• Switch

• Simplify

• Solve

Tags

CCSS.5.NF.B.6

When multiplying fractions, what should you check for before proceeding?

• Decimal conversion

• Whole number addition

• Cancellation opportunities

• Common denominators

What is the result of 7 divided by 2 and 2/5 after converting back to a mixed number?

• 3 and 1/2

• 2 and 1/5

• 2 and 11/12

• 3 and 1/3

In Example 2, what is the greatest common factor used for cancellation?

• 5

• 10

• 15

• 20

What is the final mixed number result of 10 divided by 6 and 2/3?

• 2 and 1/5

• 2 and 1/4

• 1 and 1/2

• 1 and 1/3

Tags

CCSS.5.NF.B.6

What is the benefit of using cancellation before multiplying fractions?

• It adds more steps

• It changes the denominators

• It simplifies the problem

• It makes the numbers larger

Tags

CCSS.5.NF.B.6

What is the improper fraction result of 10 over 1 times 3 over 20 without cancellation?

• 25 over 15

• 30 over 20

• 20 over 30

• 15 over 20

How do you simplify the fraction 10/20?

• Divide both by 10

• Divide both by 5

• Divide both by 2

• Divide both by 20

Tags

CCSS.3.OA.B.5

What is the final conclusion about using cancellation in fraction division?

• It provides a different path to the same answer

• It complicates the process

• It changes the final answer

• It is unnecessary

Tags

CCSS.3.OA.B.5