Finding Fractions of Whole Numbers

In this video, Mr. J explains how to find a fraction of a whole number using multiplication and division. He provides four examples: two-fifths of ten, one-third of nine, three-eighths of twenty-four, and two-sevenths of fourteen. Each example demonstrates the multiplication method, and some also show an alternative division-first approach. The video aims to help viewers understand and apply these methods to solve similar problems.

How can we convert a problem of finding a fraction of a whole number into a simpler form?

• By converting it into a multiplication problem

• By subtracting the fraction from the whole number

• By adding the fraction to the whole number

• By turning it into a division problem

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

What is 2/5 of 10?

• 5

• 8

• 4

• 2

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

How do we handle a whole number in a fraction multiplication problem?

• By placing the whole number over 1

• By subtracting the fraction from the whole number

• By adding 1 to the whole number

• By multiplying the whole number by the denominator

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Why do we not leave the answer as an improper fraction?

• To find the whole number or mixed number form

• Because improper fractions are harder to understand

• To simplify the answer to its lowest terms

• Improper fractions are not allowed in mathematics

What is the result of 1/3 of 9?

• 9

• 3

• 2

• 6

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Which operation do we perform first when using the alternative method to solve 3/8 of 24?

• Multiplication

• Subtraction

• Addition

• Division

Tags

CCSS.7.EE.B.3

What is the final result of 3/8 of 24 using both methods?

• 9

• 24

• 12

• 6

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

What is the alternative method mentioned for solving fraction of whole number problems?

• Addition first, then division

• Multiplication first, then addition

• Division first, then multiplication

• Subtraction first, then multiplication

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

What is the first step in finding 2/7 of 14 using the division method?

• Subtract 2 from 14

• Add 2 to 14

• Divide 14 by 7

• Multiply 2 by 14

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

What is the result of 2/7 of 14 using both methods?

• 7

• 14

• 4

• 2

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C