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Published byJuliet Boyd Modified over 9 years ago
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Uses of Percents Retail: “50% Off!” Politics: “With 25% of precincts in…” Science: “A 7% acid solution” Finance: “The market closed down 1.5%” Business: “Profits are up 10%” Economics: “Unemployment fell to 4.2%”
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Convert Fractions to Decimals Divide numerator by denominator Check decimal place Examples 7/8 = 7 ÷ 8 = 0.875 13/100 = 13 ÷ 100 = 0.13 13/1000 = 13 ÷ 1000 = 0.013
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Convert Decimals to Percents 100% = 1 (the whole thing) Multiply decimal x 100% Examples 0.875 = 0.875 x 100% = 87.5% 0.13 = 0.13 x 100% = 13% 0.013 = 0.013 x 100% = 1.3%
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Quiz: Convert to Percents ¾ = ?% 5/6 = ?% 8/9 = ?% 25/10,000 = ?% 15/5 = ?%
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Quiz: Convert to Percents ¾ = ?% ¾ = ?% 5/6 = ?% 5/6 = ?% 8/9 = ?% 8/9 = ?% 25/10,000 = ?% 25/10,000 = ?% 15/5 = ?% 15/5 = ?%
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