Ask Dr. Math Fractions <--> Decimals

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 How to Change Fractions to Decimals, Decimals to Fractions, a selection from the Dr. Math archives. Fractions, Decimals, Percentages - Dr. Math FAQ How do you convert decimals and percentages to fractions and back? Expressing a Fraction as a Decimal How do you write 3/8 as a decimal? Converting Decimals to Fractions How do you convert decimals to fractions? Converting Fractions and Decimals How do you convert fractions to decimals? How do you convert decimals to fractions? Deriving Fractions from Decimals I don't understand how to get the fraction for a decimal like 12.5% = 0.125 = 1/8 or 66.7% = 0.667 = 2/3. Converting Repeating Decimals to Fractions Converting Repeating Decimals to Fractions How do I make a decimal like .063490634906... into a fraction? Converting Repeating Decimals to Fractions Change the sum of the decimals to a fraction for 0.77777......., 0.4; change each decimal to a fraction and add the fraction; compare the answers.