Aim: what you’ll learn Express percents as fractions and vice versa Express percents as decimal and vice versa. Do Now:

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Presentation transcript:

Aim: what you’ll learn Express percents as fractions and vice versa Express percents as decimal and vice versa. Do Now:

Math Vocab. The meaning of Percents: A ratio of a number to 100 is called a percent. Percent means per hundred and is represented by the symbol %. Proportion: A proportion is a statement of equality of two ratios. If then ad = bc. Ratio: A ratio is a comparison of two numbers by division.

Lesson: Percents as Fractions Express each percent as fraction in simplest form. 45% 120% 0.5% 83 1/3%

Practice: Percents as Fractions Express each percent as fraction in simplest form. 42% 117% 0.8% 16 2/3%

Lesson: Percents as decimals Express each percent as a decimal. 28% 8% 367% 0.45% Note: To divide a number by 100, move the decimal point two places to the left. To multiply a number by a 100, move the decimal point two places to the right.

Practice: Express each percent as a decimal. 13% 2% 167% 0.83%

Summary

Homework #7 Class 801, 824 and 831: SOE: page 284: 20~35