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Math teacher 2012
Transcript of Math teacher 2012
100 is 25%. Like decimals and fractions, it's a part of a whole number How they are related Percents, decimals and fractions can be converted to each other. They can be the same number, just expressed in a different form. Examples: 0.12, 12/100, 12% are the same number. All fractions, decimals and percents are all related. These terms are all the same and are equivalent to each other. Fractions Decimals Percents Fractions are different parts of a whole. They interact with percents and decimals because they show how many parts of a whole there are. The bottom (denominator) is how many parts of the whole number there are. The top (numerator) is how many parts for the denominator you have. How to convert them For percents, 1.26 is equal to 126% To convert fractions into decimals, divide the numerator by the denominator. To convert decimals into percents, multiply the decimal by 100 and add the percentage sign. To convert fractions to percents, and vice versa, convert the fraction/percent into a decimal first. To convert percents into decimals, divide the percent by 100. Real Life Examples Some real life examples including fractions, are when a pizza is divided into 8 pieces and people are figuring out how much a person eats. For example, eating 2 slices means you eat 2/8 of the pizza. We use decimals when we are dealing with money. For example, a quarter is $0.25. An example with percents is when you are dealing with discounts on prices such as 20% off the regular price. Math Lesson Math Percents, Fractions, and decimals How They Help in Real Life Fractions, decimals and percents all help in real life. You can use fractions for determining how much pizza you ate. You can use decimals to calculate how much money you have. You can use percents when you're calculating discounts. 126%