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Fractions decimals percentages - Nuffield Foundation

To change a decimal to a fraction: use the place value of the last digit For example 0.85 = 100 85 = 20 17 ÷ 5 On a calculator press: 85 c ab 100 = To change a fraction to a decimal: divide the top by the bottom For example 5 4 = 4 5 = 0.8 Converting between percentages and fractions or decimals To write a % as a fraction or decimal: divide by 100