Multiplying Whole Numbers and Fractions Explained

In this video, Mr. J explains how to multiply whole numbers and fractions through four examples. He demonstrates the process of converting whole numbers to fractions, multiplying numerators and denominators, and simplifying results into mixed numbers. The video emphasizes that multiplying by fractions less than one results in a product smaller than the original whole number. Each example is broken down step-by-step, providing a clear understanding of the multiplication process and simplification techniques.

How do you convert a whole number into a fraction?

• Divide by another whole number

• Subtract 1 from the whole number

• Place the whole number over 1

• Multiply by another fraction

Tags

CCSS.3.NF.A.3C

What is the result of multiplying 3 by 1/2?

• 1 1/2

• 3/2

• 6

• 2/3

Tags

CCSS.4.NF.B.4C

CCSS.4.NF.B.4B

How do you simplify an improper fraction to a mixed number?

• Multiply the numerator by the denominator

• Divide the numerator by the denominator

• Add the numerator to the denominator

• Subtract the denominator from the numerator

Why is the result of multiplying a whole number by a fraction less than the original whole number?

• Because fractions represent division

• Because the fraction is less than 1

• Because the whole number is reduced

• Because of improper fraction conversion

Tags

CCSS.5.NF.B.5B

What does multiplying by a fraction less than one do to the whole number?

• Doubles it

• Does not change it

• Increases it

• Decreases it

Tags

CCSS.5.NF.B.5B

What is 8 times 4/5?

• 40

• 4/40

• 6 2/5

• 32/5

Tags

CCSS.4.NF.B.4C

CCSS.4.NF.B.4B

What is the mixed number form of 32/5?

• 6 2/5

• 5 2/5

• 6 3/5

• 7 1/5

How many whole groups of 5 are in 32?

• 4

• 5

• 6

• 7

Tags

CCSS.4.NBT.B.6

What is the result of 5/7 times 5?

• 25/7

• 3 4/7

• 10/35

• 5/12

Tags

CCSS.4.NF.B.4C

CCSS.4.NF.B.4B

What is the final answer for 3/4 times 12?

• 9

• 36/4

• 3/48

• 12 3/4

Tags

CCSS.4.NF.B.4C

CCSS.4.NF.B.4B