Decimals , Fractions, Percentages

A fraction is a part of a whole. In mathematics, the number is expressed as a quotient, in which the numerator is divided by the denominator.

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​What is a Fraction?

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How can we convert a Fraction into a Decimal?

To convert a fraction to a decimal, we'll just divide the numerator...by the denominator.

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The decimal of $$\frac{9}{10}$$  is ...

In a decimal number, the digits to the left of the decimal point represent a whole number. The digits to the right of the decimal represent the parts. As we move towards right after the decimal point, the place value of the digits becomes 10 times smaller.

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​Some text here about the topic of discussion.

How can we find the place value of a decimal?

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Multiple Choice

Which of the following is equivalent to 5/100?

• 0.05

• .005

• 0.5

​To convert a decimal to a percentage, multiply by 100

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​ OR

(just move the decimal point 2 places to the right)

How can we convert a decimal to a percent?

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Multiple Choice

Change 0.09 to a percent

• 9%

• 90%

• 0.009%

Multiple Choice

Change 0.28 to a percent

• 2.8%

• 28%

• 280%

To convert a percentage to a decimal, divide by 100. So 25% is 25/100, or 0.25.

​ OR

To convert a decimal to a percentage, multiply by 100 (just move the decimal point 2 places to the right)

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​Some text here about the topic of discussion.

​How can we convert a percentage to a decimal?

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Multiple Choice

25% as a decimal:  

• 0.25

• 02.5

• 25

• 2500

Multiple Choice

18% as a decimal:

• 0.18

• 18

• 1.8

• 0.81

Multiple Choice

6% as a decimal:  

• 0.06

• 0.6

• 6

• 600

First we convert a percentage to a decimal, divide by 100.

Then multiply the decimal to the original amount.

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​Some text here about the topic of discussion.

​How can we use percentages?​

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Dropdown

Finding a percent of a number we must convert the percent into a decimal by moving the decimal ​

Select answer

places to the ​

Select answer

or divide by ​

Select answer

then ​

Select answer

the decimal to the original amount.

Math Response

What is the expression for 20% of 30?

Type answer here

Correct Answer: 30\times.20

Deg^°

Rad

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What is 20% of 30?

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What is 35% of 60?

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Jerry bought an RC boat on a 15% discount with an original price of $150. How much did Jerry save?

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Felix bought doughnuts with a 6% discount, when he bought $50 worth of doughnuts. How much was his saving?

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Felix bought doughnuts with a 6% discount, when he bought $50 worth of doughnuts. How much did he spend?