5 Minute Check Write each decimal as a fraction or mixed number. 1. 0.356 2. 0.657 3. 9.359 4. .3333 Write each fraction as a decimal. 5. 6. 7. 14 8. 21

5 Minute Check Write each decimal as a fraction or mixed number. 1. 0.356 = 2. 0.657 3. 9.359 4. .3333 Write each fraction as a decimal. 5. 6. 7. 14 8. 21

5 Minute Check Write each decimal as a fraction or mixed number. 1. 0.356 = 2. 0.657 = 3. 9.359 4. .3333 Write each fraction as a decimal. 5. 6. 7. 14 8. 21

5 Minute Check Write each decimal as a fraction or mixed number. 1. 0.356 = 2. 0.657 = 3. 9.359 = 9 4. .3333 Write each fraction as a decimal. 5. 6. 7. 14 8. 21

5 Minute Check Write each decimal as a fraction or mixed number. 1. 0.356 = 2. 0.657 = 3. 9.359 = 9 4. .3333 = Write each fraction as a decimal. 5. 6. 7. 14 8. 21

5 Minute Check Write each decimal as a fraction or mixed number. 1. 0.356 = 2. 0.657 = 3. 9.359 = 9 4. .3333 = Write each fraction as a decimal. 5. = .76 6. 7. 14 8. 21

5 Minute Check Write each decimal as a fraction or mixed number. 1. 0.356 = 2. 0.657 = 3. 9.359 = 9 4. .3333 = Write each fraction as a decimal. 5. = .76 6. = .7775 7. 14 8. 21

5 Minute Check Write each decimal as a fraction or mixed number. 1. 0.356 = 2. 0.657 = 3. 9.359 = 9 4. .3333 = Write each fraction as a decimal. 5. = .76 6. = .7775 7. 14 = 14. 6 8. 21

5 Minute Check Write each decimal as a fraction or mixed number. 1. 0.356 = 2. 0.657 = 3. 9.359 = 9 4. .3333 = Write each fraction as a decimal. 5. = .76 6. = .7775 7. 14 = 14. 6 8. 21 = 21. 375

Lesson 2.2 and 2.3 Percents, Decimals and Fractions Tuesday, Sept 24 Lesson 2.2 and 2.3 Percents, Decimals and Fractions

Percents, Decimals and Fractions Objective: To understand how to convert between percents, decimals and fractions.

Percents, Decimals and Fractions

Percents, Decimals and Fractions At the end of this lesson you should be able to answer the following questions. Why is it helpful to write a fraction as a percent? What is the relationship between percents, decimals and fractions?

Percents, Decimals and Fractions Examples 25 50%=50:100 25%=100 4.75%= 4 .75:100 A percent is a ratio that compares a number to 100.

Percents, Decimals and Fractions What ratio does 75% represent? A percent is a ratio that compares a number to 100.

Percents, Decimals and Fractions What ratio does 75% represent? 75 75:100 75 out of 100 100 A percent is a ratio that compares a number to 100.

Percents, Decimals and Fractions Are these in simplest form? 75 75:100 75 out of 100 100 A percent is a ratio that compares a number to 100.

Percents, Decimals and Fractions Are these in simplest form? 3 3:4 3 out of 4 4 A percent is a ratio that compares a number to 100.

Percents, Decimals and Fractions Write 40% as a fraction. To write a percent as a fraction. Step 1 - Write the percent as a rate out of 100. 40 100

Percents, Decimals and Fractions Write 40% as a fraction. To write a percent as a fraction. Step 2 – Simplify, if necessary. 40 ÷2 20 ÷2 10 ÷5 2 100 ÷2 = 50 ÷2 = 25 ÷5 = 5 Calculator Shortcut - Percent number, fraction line, 100, press “enter”. (some calculators may need to simp)

Percents, Decimals and Fractions In a recent survey 55% of cell phone users say they text. What fraction of cell phone users is this? (Do this on your own)

Percents, Decimals and Fractions In a recent survey 55% of cell phone users say they text. What fraction of cell phone users is this? 55 ÷5 11 100 ÷5 = 20

Percents, Decimals and Fractions In a sand sculpture contest, 65% of the sculptures were castles. What fraction of the sculptures were castles?

Percents, Decimals and Fractions In a sand sculpture contest, 65% of the sculptures were castles. What fraction of the sculptures were castles? 65 ÷5 13 100 ÷5 = 20

Percents, Decimals and Fractions The table shows the percent of each movie type rented during a month. What fraction of the rentals were action movies?

Percents, Decimals and Fractions The table shows the percent of each movie type rented during a month. What fraction of the rentals were action movies? 35 ÷5 7 100 ÷5 = 20

Percents, Decimals and Fractions To write a fraction as a percent. 6 Write 8 as a percent. Step 1 – Convert the fraction to a decimal. 8 = .75

Percents, Decimals and Fractions To write a fraction as a percent. 6 Write 8 as a percent. Step 2 – Multiply by 100. 8 = .75 x 100 = 75% Calculator Shortcut - Top number, divide, bottom number, times 100, and press “enter”.

Percents, Decimals and Fractions 5 Write 20 as a percent. (Do this on your own)

Percents, Decimals and Fractions 5 Write 20 as a percent. 20 = .25 x 100 = 25%

Percents, Decimals and Fractions 1 Write 5 as a percent. (Do this on your own)

Percents, Decimals and Fractions 1 Write 5 as a percent. 5 = .2 x 100 = 20%

Percents, Decimals and Fractions Mitchell made 12 out of 40 shots during the basketball game. What percentage of the shots did he make?

Percents, Decimals and Fractions Mitchell made 12 out of 40 shots during the basketball game. What percentage of the shots did he make? 12 40 = .3 x 100 = 30% What percentage of his shots did he NOT make?

Percents, Decimals and Fractions Mitchell made 12 out of 40 shots during the basketball game. What percentage of the shots did he make? 12 40 = .3 x 100 = 30% What percentage of his shots did he NOT make? 100% - 30% = 70%

Percents, Decimals and Fractions Write 48% as a decimal. To write a percent as a decimal. Divide the decimal by100 and remove the % sign. (Or just move the decimal point two places to the left). 48% ÷100 = .48 Calculator Shortcut - Enter the number, divide by 100, then “enter”

Percents, Decimals and Fractions Write 56% as a decimal. (Do this on your own)

Percents, Decimals and Fractions Write 56% as a decimal. 56% ÷100 = .56

Percents, Decimals and Fractions Write .4 as a percent. To write a decimal as a percent. Multiply the decimal by100 and add the % sign. .4 x 100 = 40% Calculator Shortcut - Enter the decimal, multiply by 100, then “enter”

Percents, Decimals and Fractions Write .25 as a percent.

Percents, Decimals and Fractions Write .25 as a percent. .25 x 100 = 25%

Percents, Decimals and Fractions The United States produces more corn than any other country, producing .4 of the total corn crops. What is the percentage?

Percents, Decimals and Fractions The United States produces more corn than any other country, producing .4 of the total corn crops. What is the percentage? .4 x 100 = 40%

Percents, Decimals and Fractions Write a decimal between .5 and .75. Then write it as a fraction in the simplest form.

Percents, Decimals and Fractions Write a decimal between .5 and .75. Then write it as a fraction in the simplest for form and then write it as a fraction. There are many answers to this. Sample answer .6 = = 60%

Percents, Decimals and Fractions Agenda Notes Homework – Homework Practice 2-2/3 Due Wednesday Sept. 25 Mid-Chapter Quiz on Thursday, Sept 26