Calculating Percentages and Fractions

This lesson explores benchmark percentages, explaining how 100%, 50%, 25%, 75%, 10%, and 1% relate to fractions. It provides methods to calculate these percentages for any number, such as halving for 50%, quartering for 25%, and dividing by 10 or 100 for 10% and 1%, respectively. The lesson concludes by encouraging the application of these concepts to tackle more complex percentages.

What is the equivalent of 100% in fraction form?

• 1/2

• 1/10

• 1/4

• 1/1

How can 50% be represented as a fraction?

• 1/10

• 1/2

• 3/4

• 1/4

If you want to find 100% of a number, what should you do?

• Divide by 10

• Use the number itself

• Multiply by 2

• Divide by 2

To find 50% of a number, you should:

• Multiply by 10

• Divide the number by 2

• Double the number

• Subtract 10

If you have 100% of a number, what is the result?

• Zero

• Half the number

• The number itself

• Double the number

What is the method to calculate 25% of a number?

• Divide by 4

• Multiply by 4

• Subtract 5

• Add 10

How do you find 25% of 20?

• 5

• 10

• 15

• 20

To calculate 75% of a number, you need to:

• Add 50% and 25%

• Divide by 4

• Subtract 25% from 100%

• Multiply by 3

What is 75% of 32?

• 24

• 16

• 8

• 32

How can you find 10% of a number?

• Subtract 10

• Add 10

• Divide by 10

• Multiply by 10