Page 86 - TB_5B
P. 86
Method 1
Find 80% of 20.
Write the percent as a fraction in Multiply the fraction by the number.
simplest form.
4 20 16
80 4 5
80% 100 5
1 . Find the percent of a number using the method above.
a. 30% of 9 30 9 b. 15% of 40
100
2.7
c. 45% of 20 d. 4% of 80
Method 2 Multiply the decimal by the number.
0.8 20 16
Find 80% of 20.
Write the percent as a decimal.
80% 0.8
2 . Find the percent of a number using the method above.
a. 10% of 30 0.1 30 b. 20% of 70
3
c. 40% of 60 d. 2% of 50
24. Fractions, Decimals, and Percents 75
Find 80% of 20.
Write the percent as a fraction in Multiply the fraction by the number.
simplest form.
4 20 16
80 4 5
80% 100 5
1 . Find the percent of a number using the method above.
a. 30% of 9 30 9 b. 15% of 40
100
2.7
c. 45% of 20 d. 4% of 80
Method 2 Multiply the decimal by the number.
0.8 20 16
Find 80% of 20.
Write the percent as a decimal.
80% 0.8
2 . Find the percent of a number using the method above.
a. 10% of 30 0.1 30 b. 20% of 70
3
c. 40% of 60 d. 2% of 50
24. Fractions, Decimals, and Percents 75
