FRACTIONS

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.3131
FRACTIONS DECIMALS PERCENTS SEA- ing THE
CONNECTIONS
13/20
90
25
.45
1/2
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Fractions, Decimals, Percents
Where do we find fractions, decimals and percents
in our everyday life?
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Fractions, Decimals, Percents
To fully understand the data you see in your
everyday life, you should be able to change from
one number form to another.
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Changing fractions to decimals
3/4
Divide the numerator by the denominator (3
divided by 4)
Round the decimal to the hundredths place
0.75
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Now, Its your turn to turn fractions into
decimals. Complete the conversions below on your
notebook paper with either method. Check your
answers by clicking on the fish after youve
finished all eight problems.
1. 8/25 2. 34/125 3. 3/8 4. 2/3 5.
7/40 6. 7/8 7. 8/11 8. 15/25
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8/25 0.32
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34/125 0.27
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3/8 0.38
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2/3 0.67
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7/40 0.18
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7/8 0.88
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7/40 0.18
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8/11 0.73
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15/25 0.60
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Writing Fractions as Percents
Method 1 Write an equivalent fraction with a
denominator of 100
Write an equivalent fraction with a denominator
of 100
4/5
Write the numerator with a percent symbol
Method 2 Use division to write the fraction as
a decimal
Divide the numerator by the denominator
3/8
Multiply by 100 by moving the decimal point right
two spaces. Add the percent symbol.
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• Convert the following fractions to percents on
  your notebook paper. Check your answers by
  clicking on the fish after youve finished all
  five problems.
• 8/25 2. 5/6
• 3. 7/8 4. 1/20
• 5. 9/1000

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8/25 32
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5/6 83.3
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7/8 87.5
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1/20 5
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9/1000 0.9
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Writing Decimals as Percents
Method 1 Use place value
0.3
Write the decimal as a fraction
Write an equivalent fraction with 100 as the
denominator
Write the numerator with a percent sign
0.43
Write the decimal as a fraction
Write the numerator with a percent sign
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Writing Decimals as Percents
Method 2 Multiply by 100
0.7431
Multiply by 100
Add the percent symbol
0.023
Multiply by 100
Add the percent symbol
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• Convert the following decimals to a percent on
  your notebook paper. Check your answers by
  clicking on the fish after youve finished all
  five problems.
• 0.195 2. 0.07
• 3. 0.0334 4. 0.55
• 5. 0.01

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.195 19.5
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.07 7
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.0334 3.34
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.55 55
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.01 1
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Fishing for a game Click on the Fish Bowl and Go
Fish!(A matching game of Equivalent Fractions,
Decimals, and Percents)
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Fishing for math links

• While youre surfing the web, dive into these
  swimming holes to learn more about fractions,
  decimals, and percents or any other math topic.
• Meter Math resources
• Ask Dr. Math
• Saloon Snap - A BBC Education Game of conversion
  (lots of fun)
• Marin College, ca mathematics Department
  Converting repeating decimals to fractions
• Math.com
• Decimal matching Harcourt school publishers
  site

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