33 Percent is One-Third
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The document explains how to calculate various percentages, specifically focusing on 33 1/3%, 66 2/3%, and 133 1/3% of different numbers. It provides examples of finding percentages in practical scenarios, such as calculating tips, sales comparisons, and taxes. Additionally, it lays out a strategy for converting percentages to fractions for easier computation.
33 Percent is One-Third
- 1. 33⅓% is 1/3 To find 33⅓% of a number divide by 3. (Sometimes we round 33⅓% to 33%.)
- 2. 33⅓ ¢ 33⅓ ¢ + 33⅓ ¢ $1.00 0% 33⅓% 66⅔% 100% 133⅓% 1 2 4 3 3 3 3 3
- 3. Find the percent 1. 10 makes out of 30 attempts: 10 1 33⅓% 30 3 2. 40 yes votes on 60 ballots: 40 2 66⅔% 60 3
- 4. Recall the strategy: To find A% of B You can change the percent to a fraction, Find B divided by the bottom, then Multiply by the top. Find 66⅔% of 18 2 2 18 66 % of 18 3 18 2 6 2 12 3 3
- 5. Find the number 1. Find 33⅓% of 24. 1 of 24 24 3 8 3 2. Find 66⅔% of 27. 2 of 27 (27 3) * 2 9 * 2 18 3 3. Find 133⅓% of 150. 4 of 150 (150 3) * 4 50* 4 200 3
- 6. Examples: 1. If the bill is $39 and the tip is $13, 13 1 what percent was the tip? 33 1 % 3 39 3 2. If sales are expected to be $240 and the actual sales were $320, what percent of 240 is 320? 320 32 4 133 1 % 3 240 24 3 3. Total income is 6 million dollars. Taxes and fees are 33%. How much goes to taxes and fees? 2 million dollars 4. We have 30 copies of the book and 67% have been checked out. How many have been checked out? two-thirds of 30 is 20