Percents

Definition/ Summary / How To / Steps

Percentage means out of a hundred, or per cent. You can find a percentage by creating ratios and proportions.

Easy Problems
51 yellow ducks in a pond out of 100 birds = 51%

17 blue marbles out of 100 marbles = 17%

23 blue jerses out of 100 = 23%

Medium Problems 6 footballs out of 25 balls = 76%

9 blue pants out of 75 pants = 12%

Example: 54% - .54**
 * //Percents to Decimals //**
 * 1. Move the decimal two places to the left

2. Simplify if needed Example: 40% - 40/100 - 2/5**
 * //Percent to Fraction//**
 * 1. Write the percent as a fraction out of one hundred

- add zeros if needed Example: .03 - 3%**
 * // Decimal to Percent //**
 * - move decimal two places to the right and then add the percent (%) sign

3/20 - 15/100 - 15% **
 * //Fraction to Percent// **
 * - make fraction out of one hundred and take the numerator as the percent

Hard Problems There are 50 bugs.10 die from a bug zapper.2 more come, 12 fly away and 29 are squashed. How what pecent is left. answer 2%

what is 20/80 as a percent? answer 25%

Pictures



PERCENT [|http://www.mathleague.com/help/percent/percent.GIF]November, 5 2009



Online Picture. Pie Chart- percent of weather. [] January 11, 2010 [] Video media type="custom" key="5145547" width="210" height="210"

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