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Fractions, Decimals, Percents
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Changing fractions to decimals Divide the top (numerator) by the bottom (denominator)! Copyright © 2000 by Monica Yuskaitis
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Expressas a decimal.
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Expressas a decimal.
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Convertto a decimal..
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. Convertto a decimal.
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Changing Decimals to Percents Copyright © 2000 by Monica Yuskaitis
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Express 0.375 as a percent Move decimal point 2 places to the right and add the % sign. Convert 2.867 to a percent
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Convert decimals to percents Make sure there are at least two digits at the decimal points; add zero where needed (this does not change the value of the number).
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Changing Percents to Decimals Copyright © 2000 by Monica Yuskaitis
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Express 56.25 % as a decimal Move decimal point 2 places to the LEFT and remove the % sign.
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Express the percents as decimals
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Worksheet Copyright © 2000 by Monica Yuskaitis
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How to Change Fractions to Percents Step 1 - Divide the denominator into the numerator. 3 4
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Copyright © 2000 by Monica Yuskaitis How to Change Fractions to Percents Step 2 – Place a decimal in your quotient exactly above the decimal. 3 4 Putting the decimal in the right spot is important. 4)4) 3.00.
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Copyright © 2000 by Monica Yuskaitis How to Change Fractions to Percents Step 3 – Divide exactly like you would with long division. 3 4 Great job! 4)4) 3.00. 7 2 8 20 5 20
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Copyright © 2000 by Monica Yuskaitis How to Change Fractions to Percents Step 4 – Move the decimal 2 places to the right and change the decimal to a percent sign. 3 4 Now wasn’t that easy!. 75% =
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Copyright © 2000 by Monica Yuskaitis You try: Change this fraction to a percent 1 5 The first step is to divide the denominator into the numerator. 5)5) 1
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Copyright © 2000 by Monica Yuskaitis Change this fraction to a percent 1 5 The second step is to add a decimal & 2 zeros after the dividend. 5)5) 1.00
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Copyright © 2000 by Monica Yuskaitis Change this fraction to a percent 1 5 The third step is to place the decimal in the quotient directly above the decimal. 5)5) 1.00.
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Copyright © 2000 by Monica Yuskaitis Change this fraction to a percent 1 5 The fourth step is to divide using long division. 5)5) 1.00.2 10 00 0 00 0
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Copyright © 2000 by Monica Yuskaitis Change this fraction to a percent 1 5 The fifth step is to move the decimal point 2 places to the right and change it to a percent sign. 5)5) 1.00. 2 10 00 0 00 0 %
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Express fractions as percents by long division
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Changing decimals to fractions Find the place value of the last number. That is the denominator! Copyright © 2000 by Monica Yuskaitis
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Convert decimal to base 10 fraction; simplify
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Changing a percent to a fraction Percents are always over 100!!
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Express percents to fractions by dividing by 100
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Decention Game http://www.mathplayground.com/Decention/ Decention.html Copyright © 2000 by Monica Yuskaitis
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Worksheet
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Matching Game http://www.bbc.co.uk/skillswise/numbers/frac tiondecimalpercentage/comparing/comparin gall3/game.shtml
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Jeopardy game http://www.math-play.com/Fractions- Decimals-Percents-Jeopardy/fractions- decimals-percents-jeopardy.html http://www.math-play.com/Fractions- Decimals-Percents-Jeopardy/fractions- decimals-percents-jeopardy.html
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Large and small percents Change to fractions (remember percents are always over 100!). Change to decimals (move decimal 2 places to the left). 1. 0.4% 2. 175% 3. 1/6%
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Change to fractions (remember percents are always over 100!). Change to decimals. 4. 254% 5. 0.05% 6. 5/8%
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8-4 Study Guide
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Review for test! You will need to know how to convert between fractions, decimals, and percents: including large and small percents! Copyright © 2000 by Monica Yuskaitis
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