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Percents and Fractions

Percents and Fractions. The word percent means “per hundred.” A percent is a ratio whose denominator is 100. To write a percent as a fraction, consider that percent as “out of 100”. Then simplify. Examples :. To write a fraction as a percent, write a proportion out of 100. Then solve.

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Percents and Fractions

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  1. Percents and Fractions

  2. The word percent means “per hundred.” A percent is a ratio whose denominator is 100. To write a percent as a fraction, consider that percent as “out of 100”. Then simplify. Examples:

  3. To write a fraction as a percent, write a proportion out of 100. Then solve. Examples:

  4. To find the percent of a number (part of a whole), multiply the part (as a fraction) by the whole. Examples: 26% of 88 13% of 32 50% of 32

  5. Percentage Proportion Model To find the percent of a number, use the proportion… When we are looking for the percent of a number, we are looking for part of the whole. What part of 160 is 46%? Examples: 60% of 75

  6. Find… 95% of 350 70% of 900 What part of 75 is 60%? What number is 37% of 200? What percent of 40 is 16? 14 is 56% of what number?

  7. What percent of 70 is 40? 70 is 40% of what number What is 70% of 40? What percent of 40 is 8? 60 is 20% of what number? What number is 25% of 36? What number is 18% of 256? What percent of 80 is 8?

  8. 102 is 85% of what number? What percent of 68 is 17? What number is of 180? 42 is 24% of what number? You have 35 books on your bookshelf. If 14 are sports books, what percent of the books on your shelf are sports books?

  9. Sixty-five percent of the trees in a park are pine trees. There are 26 pine trees in the park. How many trees are in the park in all?

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