Percentage Calculations

Decimal, Fraction, Percent Conversions

Multiple Choice

5/8 is an example of a ______

• decimal

• fraction

• percent

• none of these

Multiple Choice

.53 is an example of a _____

• decimal

• fraction

• percent

• all of these

Multiple Choice

26% is an example of a _____

• decimal

• fraction

• percent

• all of these

Decimals!!!

​

Multiple Choice

5.369

The 9 is in the ________ place.

• tenths

• thousandths

• ones

• tens

Multiple Choice

5.369

The 3 is in the ________ place.

• tenths

• thousandths

• ones

• tens

Multiple Choice

5.369

The 5 is in the ________ place.

• tenths

• thousandths

• ones

• tens

Multiple Choice

715.369

The 7 is in the ________ place.

• tenths

• thousandths

• hundreds

• tens

Decimals to Fractions

• numbers to the left of the decimal is the whole of a fractions

• Ex: In the decimal 5.31, the 5 is the whole and the .31 would be used to make the faction 31/100

Multiple Choice

What is 0.51 as a fraction?

• 51/100

• 5/1

• 1/5

• 51%

Multiple Choice

What is 2.2 as a fraction in simplest form?

• 2 1/5

• 2 2/10

• 22/100

• 11/50

Decimals to Percent

• numbers to the left of the decimal is a hint that the percent will be greater than 100

• Ex: In the decimal 5.31, the percent will be 531% once multiplied by 100

Multiple Choice

What is 0.57 as a percent?

• 5.7%

• 57%

• 0.57%

• 5700%

Multiple Choice

What is 9.876 as a percent?

• 987.6%

• 98.76%

• 9876%

• .09876%

Percents to Fractions

• Percents greater than 100 will have a fraction with a whole number

• Ex: In the percent 567%, the fraction will be 5 67/100 once reduced to simplest form

Multiple Choice

What is 45% as a fraction in simplest form?

• 45/100

• 9/20

• 3/5

• 3/10

Multiple Choice

What is 123% as a fraction in simplest form?

• 1 23/100

• 1 1/4

• 1 11/50

• 12 3/10

Poll

I feel _______ about all of this.

• GREAT!!!

• ok

• ehh

• HELP!!!

Fraction Decimal Percent Conversions Lesson & Practice

Percent Conversions

​To convert a Fraction to a decimal...

​Divide

​

​Top in

​Bottom Out

Writing Percent as a Decimal

Multiple Choice

Convert the fraction to a decimal.

• 2.66

• 0.375

• 2.6

• 3.75

Fill in the Blank

Write as a decimal: 34%

Multiple Choice

Convert the fraction to a decimal.

• 0.66...

• 0.33....

• 1.5

• 3

Fill in the Blank

Write as a decimal: 47%

​To change a decimal to a percent...

​shift the decimal point 2

spaces to the right --> -->

Fill in the Blank

Write as a decimal: 7%

Multiple Choice

Change 0.025 to a percent.

• 25%

• 2.5%

• 0.25%

• 250%

Fill in the Blank

Write as a decimal: 100%

Multiple Choice

Convert 1.5 to a percent.

• 15%

• 150%

• 1.5%

• 1500%

Writing Decimal as a Percent

• Multiply the decimal number by 100

• Ex: 0.37 x 100 = 37%

• Be sure to label with %

• Note the number of place values the decimal moved (and which way!)

​To change a percent to a decimal...

​Shift the decimal two spaces to the left <-- <--

​

​You may need to add a decimal to the left of the percent if the number does not already have one.

​

​If there is an empty space you will need to add a zero

Fill in the Blank

Write the percent: 0.75

Multiple Choice

Convert 134% into a decimal.

• 0.134

• 1.34

• 0.0134

• Not here

Fill in the Blank

Write the percent: 0.93

Multiple Choice

Convert 6% into a decimal.

• 0.06

• 0.6

• 0.006

• 6

Fill in the Blank

Write the percent: 0.05

​To convert a percent to a fraction...

​Write the percent over 100 in fraction form.

​

​percent

​---------

​100

​

​Simplify

Fill in the Blank

Write the percent: 0.9

Multiple Choice

20% is what fraction?

• 1/5
• 2/5
• 1/2
• 1/4

Open your math book to page 80

Multiple Choice

70% is what as a fraction?

• 7/10
• 2/3
• 3/4
• 4/5

To convert a decimal to a fraction...

​Use place value to write the decimal as a fraction.

​

​Simplify if needed.

Multiple Choice

Change to a fraction:
0.18

• 18/50
• 9/50
• 17/50
• 18

Multiple Choice

Change to a fraction: 5.68

• 5  17/250

• 5  17/2

• 5  17/25

• 568