1. Warm Up Write each fraction as a decimal. Course 2 6-1 Percents 1. 3434 3838 2. 3.4. 0.750.375 3535 6 15 0.60.4

2. Learn to model percents and to write percents as equivalent fractions and decimals. Course 2 6-1 Percents

3. Vocabulary percent Insert Lesson Title Here Course 2 6-1 Percents

4. Course 2 6-1 Fractions, Decimals, and Percents A percent is the ratio of a number to 100. The symbol % is used to indicate that a number is a percent. = 6% 6 100 The word percent means “per hundred.” So 6% means “6 out of 100.” Reading Math

5. Write the percent modeled by each grid. A. B. Additional Example 1: Modeling Percents Course 2 6-1 Percents shaded total _______ 32 100 ___ = 32% shaded total _______ 66 100 ___ = 66%

6. Write the percent modeled by each grid. A. B. Check It Out: Example 1 Course 2 6-1 Percents shaded total _______ 44 100 ___ = 44% shaded total _______ 75 100 ___ = 75%

7. Write 28% as a fraction in simplest form. Additional Example 2: Writing Percents as Fractions Course 2 6-1 Percents So 28% can be written as. Write the percent as a fraction with a denominator of 100. Simplify. 28% = 28 100 7 25 = 7 25

8. Write 90% as a fraction in simplest form. Check It Out: Example 2 Course 2 6-1 Percents So 90% can be written as. Write the percent as a fraction with a denominator of 100. Simplify. 90% = 90 100 9 10 = 9 10

9. Additional Example 3: Writing Percents as Decimals Course 2 6-1 Percents Write 17% as a decimal. Method 1 Use pencil and paper. 17% = 17 100 = 0.17 Write the percent as a fraction with a denominator of 100. Divide 17 by 100.

10. Additional Example 3 Continued Course 2 6-1 Percents Write 17% as a decimal. Method 2 Use mental math. 17% = 0.17 Move the decimal point two places to the left.

11. Check It Out: Example 3 Course 2 6-1 Percents Write 24% as a decimal. Method 1 Use pencil and paper. 24% = 24 100 = 0.24 Write the percent as a fraction with a denominator of 100. Divide 24 by 100.

12. Check It Out: Example 3 Continued Course 2 6-1 Percents Write 24% as a decimal. Method 2 Use mental math. 24% = 0.24 Move the decimal point two places to the left.

13. Lesson Quiz 36% Insert Lesson Title Here Course 2 6-1 Percents 1. Write the percent modeled by the grid. 2. Write 92% as a fraction in simplest form. 23 25 3. Write 16.4% as a decimal.0.164