Percent Proportion

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 60% of 145, calculate 145 x 0.60 = 87.

Front

What is the formula for finding the percent of a part compared to a whole?

Back

The formula is: (Part/Whole) x 100 = Percent.

Front

If 60% of a number is 87, what is the number?

Back

To find the number, divide 87 by 0.60. The number is 145.

Front

What percent grade did Shirley get if she spelled 12 out of 15 words correctly?

Back

To find the percent grade, use the formula: (12/15) x 100 = 80%.

Front

What is the percent of 56 that is 42?

Back

To find the percent, use the formula: (42/56) x 100 = 75%.

Front

How many students are home sick if 25% of 28 students are sick?

Back

To find the number of sick students, calculate: 28 x 0.25 = 7 students.

Front

What percent of cans are recycled if 13 out of 20 cans are recycled?

Back

To find the percent, use the formula: (13/20) x 100 = 65%.

Front

What does it mean if a number is 25% of another number?

Back

It means that the first number is one-fourth of the second number.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100.