Percents, Fractions, and Decimals

Vocabulary A percent is a ratio that compares a number to 100. It means “per 100.” 49 out of 100 is 49%.

Changing Fractions to Percents Divide the numerator by the denominator to get a decimal. Change the decimal to a percent by moving the decimal point to the right or multiply by 100. 6 0.24 24% 25

Changing Decimals to Percents Move the decimal point two spaces to the right, and add a % symbol (this is the same as multiplying by 100). 34% 1 .34 100% 19% .19 .125 12.5% .6 60%

Writing Percents as Fractions Place the percent in a fraction with a denominator of 100. Simplify the fraction. 26% 26 13 100 50 75 3 75% 100 4

Writing Percents as Decimals Imagine a decimal point in the place of the percent sign, and move the decimal two spaces to the left (the same as dividing by 100). 26% .26 40% .40 .4 .07 7%