Percents Decimals and Fractions Textbook Pages 429 433

Percents, Decimals, and Fractions Textbook Pages 429 -433 Monday January 13 th

$Objective • I can write equivalent percents, fractions, and decimals.$

Objective • I can write equivalent percents, fractions, and decimals.

$Writing fractions as Percents! • If Max made 7 out of 10 free throws$

Writing fractions as Percents! • If Max made 7 out of 10 free throws and John made 17 out of 25 free throws. Who had a better percent? • First write each result as a fraction. • 7 17 10 25 Then write an equivalent fraction with a denominator of 100 to find the percent.

• 7/10 17/25 • __/100 ___/100 • 70/100 68/100 • 70% 68% Remember when making equivalent fractions whatever you do to the bottom you do to the top.

Try some • • • ¾ 75% 7/20 35% 3/25 12%

$Is there another way to find the percent from a fraction. • Just divide$

Is there another way to find the percent from a fraction. • Just divide the fraction out to find the decimal.

Write decimals as Percents • Remember when we changed a percent to a decimal we divided by 100. • Just like most things in math, in order to undo something we do the opposite. • To change a decimal to a percent, multiply by 100.

Making decimal a percent 0. 27 Take this and multiply by 100 to get the percent. 0. 27 x 100 = 27% Or move the decimal two spots to the right.

$Another way! • You can read the decimal and make a fraction> • 0.$

Another way! • You can read the decimal and make a fraction> • 0. 25 • You would read this how? • Twenty hundredths, which means 25 over 100 • 25/100 • Which is 25%

Try Some • • 0. 3 30% 0. 105 10. 5%

Benchmark Percents, Fractions, Decimals You can use benchmark percent to write other percents, decimals, or fractions. Use benchmark percents to help you locate where others may fall.

$Concept Summary Benchmark Percent, Decimals, and fractions • • Thirds 33 1/3% = 0.$

Concept Summary Benchmark Percent, Decimals, and fractions • • Thirds 33 1/3% = 0. 33 = 1/3 66 2/3% = 0. 66 = 2/3 Fourths 25% = 0. 25 = ¼ 50% = 0. 50 = ½ 75% = 0. 75 = 3/4

$Concept Summary Benchmark Percent, Decimals, and fractions • • • Fifths 20% = 0.$

Concept Summary Benchmark Percent, Decimals, and fractions • • • Fifths 20% = 0. 2 = 1/5 40% = 0. 4 = 2/5 60% = 0. 6 = 3/5 80% = 0. 8 = 4/5

$Concept Summary Benchmark Percent, Decimals, and fractions • • • Tenths 10%=0. 1=1/10 30%=0.$

Concept Summary Benchmark Percent, Decimals, and fractions • • • Tenths 10%=0. 1=1/10 30%=0. 3=3/10 50%=0. 5=5/10 70%=0. 7=7/10 90%=0. 9=9/10 20%=0. 2=2/10 40%=0. 4=4/10 60%=0. 6=6/10 80%=0. 8=8/10

Homework • Workbook pages 111 -112