Percents , Decimals, and Fractions

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# Percents , Decimals, and Fractions - PowerPoint PPT Presentation

Percents , Decimals, and Fractions. #21. Example 1: Writing Decimals as Percents Write the decimal as a percent. Method 1: Use place value. 0.7. Example 2 : Writing Decimals as Percents Write the decimal as a percent. Method 2: Multiply by 100. 0.4118. Example 3

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Presentation Transcript

Example 1: Writing Decimals as Percents

Write the decimal as a percent.

Method 1: Use place value.

0.7

Example 2: Writing Decimals as Percents

Write the decimal as a percent.

Method 2: Multiply by 100.

0.4118

Example 3

Write the decimal as a percent.

0.023

Example 4

Write the decimal as a percent.

0.018

Example 5

Write the decimal as a percent.

0.957

When the denominator is a factor of 100, it is often easier to use method 1. When the denominator is not a factor of 100, it is usually easier to use method 2.

9

__

25

Example 6: Writing Fractions as Percents

Write the fraction as a percent.

Method 1: Write an equivalent fraction with a denominator of 100.

3

__

20

Example 7: Writing Fractions as Percents

Method 2: Use division to write the fraction as a decimal.

7

__

50

Example 8

Write the fraction as a percent.

11

__

50

Example 9

Write the fraction as a percent.

7

__

25

Example 10: Real-World Application

One year, of people with home offices

were self-employed. What percent of people with home offices were self employed?

9

__

20

Example 11

During the soccer season, of Evan’s teammates scored a goal. What percent of Evan’s teammates scored a goal?

1

__

5

Example 12

Jo spends of her time at the gym doing stretches to warm up. What percent of Jo’s time at the gym does she spend stretching?

2

__

5

Example 13

George wants of the calories he eats to come from protein. What percent of George’s calories should come from protein?

F.Y.I.

The number line below shows common equivalent fractions, decimals, and percents.