Calculating Fractions of Numbers

This video tutorial teaches how to calculate fractions of an amount, starting with unit fractions and moving to non-unit fractions. It explains the process of dividing by the denominator and multiplying by the numerator, providing examples for both unit and non-unit fractions. The video concludes with a practice problem for viewers to solve.

What is the first step in finding a unit fraction of a number?

• Subtract the denominator from the number

• Multiply the number by the numerator

• Divide the number by the denominator

• Add the numerator to the number

If you have 15 and need to find one-fifth, what is the result?

• 15

• 1

• 5

• 3

How do you calculate one-quarter of 32?

• 32 plus 4

• 32 multiplied by 4

• 32 minus 4

• 32 divided by 4

What is the result of one-third of 21?

• 1

• 21

• 3

• 7

What is the result of dividing 32 by 4?

• 8

• 4

• 16

• 32

What additional step is needed for non-unit fractions?

• Divide the result by the numerator

• Subtract the numerator from the result

• Multiply the result by the numerator

• Add the numerator to the result

How do you find four-fifths of 15?

• Divide 15 by 4, then multiply by 5

• Divide 15 by 5, then multiply by 4

• Add 4 to 15, then divide by 5

• Multiply 15 by 4, then divide by 5

What is the result of three-quarters of 32?

• 24

• 8

• 12

• 32

How do you calculate six-tenths of 30?

• Divide 30 by 10, then multiply by 6

• Divide 30 by 6, then multiply by 10

• Divide 30 by 10, then add 6

• Divide 30 by 5, then multiply by 6

What is the result of six-tenths of 30?

• 6

• 12

• 18

• 30