Multiplying Mixed Numbers and Whole Numbers Explained

In this video, Mr. J explains how to multiply mixed numbers and whole numbers through two examples. The first example involves multiplying 8 by 1 3/4, demonstrating the conversion of numbers to improper fractions and the use of cross-cancellation to simplify calculations. The second example covers multiplying 2 5/6 by 7, showing the process of converting to improper fractions and simplifying the result. The video concludes with a summary of the steps and encourages viewers to practice the method.

What is the first step in multiplying mixed numbers and whole numbers?

• Divide the numbers

• Convert them to improper fractions

• Add the numbers together

• Subtract the numbers

Tags

CCSS.5.NF.B.6

How do you convert a whole number to a fraction?

• Multiply it by 2

• Add 1 to it

• Put it over 1

• Subtract 1 from it

Tags

CCSS.3.NF.A.3C

What is the greatest common factor used for cross cancellation in Example 1?

• 2

• 3

• 4

• 5

What is the result of 8 times 1 and 3/4 after using cross cancellation?

• 12

• 14

• 18

• 16

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

What should you do if you don't understand cross cancellation?

• Watch another video for more details

• Guess the answer

• Ask a friend

• Skip the problem

What is the improper fraction form of 56 divided by 4?

• 14

• 13

• 15

• 12

Tags

CCSS.5.NF.B.3

How do you convert 2 and 5/6 to an improper fraction?

• 15/6

• 16/6

• 17/6

• 14/6

What is the result of 17 times 7?

• 119

• 109

• 129

• 139

Tags

CCSS.4.NBT.B.5

What is the mixed number form of 119 divided by 6?

• 20 and 5/6

• 19 and 4/6

• 19 and 5/6

• 18 and 5/6

What is the final simplified form of 19 and 5/6?

• 19 and 5/6

• 19 and 1/6

• 19 and 2/6

• 19 and 3/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2