Percents, Decimals, & Fractions
Finding the Part
Finding the Whole
Finding the Percent
Solving Percents with Proportions
100

Convert 45% to a decimal

0.45

100

Find the part

75/100 = x/4


x=3

75/100 =3/4

100

60/100= x/20

12

60/100= 12/20

100

At a construction job for a theater there are 18 painters. Of these painters, 9 of them are painting the interior of the theater. What percent of these painters are painting the interior?

50%

50/100 = 9/18

100

What is 40% of 50?

20

40/100 = 20/50

200

Convert 67% to a fraction

67/100

200

Find the Part


30/100 = x/250

x=75

30/100 = 75/250

200

15/100= x/40

6

15/100= 6/40

200

Mike went to his local zoo that featured 28 lion exhibits. If the zoo features 35 exhibits in total, then what percent of the zoo's exhibits feature lions?

80%

80/100 = 28/35

200

15 is what percent of 60?

25%

25/100 = 15/60

300

Convert 0.32 to a percent

32%

300

Sara decided to look at new and used trucks. Sara found a new truck for $40,000. Typically a used truck goes for 85% of a new truck, so what price would a used truck be?

$34,000

85/100= 34000/40000

300

In one particular suburb, there are 18 families that own a terrier. If these owners make up 75% of all dog owners in this suburb, then how many dog owners are there in this neighborhood?

24

75/100 = 18/24

300

In one particular suburb, there are 6 families that own a bulldog. If there are a total of 24 families that own a dog in general, then what percentage of dog owners have a bulldog?

25%

25/100 = 6/24

300

20 is 10% of what number?

200

10/100 = 20/200

400

Convert to 0.23 a Fraction

23/100

400

At a local department store, dresses are typically priced at $20. Due to a special, the dresses are reduced to 75% of their original price. How much are dresses now?

$15

75/100 = 15/20

400

36 of the students in a Algebra class passed a Algebra test. If these students are 90% of all the students in the class, how many students are in this Algebra class?

40

90/100 = 36/40

400

For one Algebra test, Joan had to answer 20 questions. Of these 20 questions, Joan answered 9 of them correctly.

45%

45/100 = 9/20

400

What number is 90% of 140?

126

90/100 = 126/140

500

Convert to a percent

17/20

85%
500

One baseball team played 30 games throughout their entire season. If this baseball team won 20% of those games, then how many games did they win?

6

20/100 = 6/30

500

While mining, John found a large metal bar that weighed 14 ounces of zinc. John was also able to determine that the bar contained 35% zinc. How many ounces is the metal bar?

40

35/100 = 14/40

500

There are 15 students in a class and 10 of these students passed their Biology test. What percentage of these students passed their test? Round your answer to the nearest whole number if necessary.

67%

67/100 = 10/15

500

What percent of 20 is 14?

70%

70/100 = 14/20