Percent Proportions

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 20% of 50, calculate 50 * 0.20 = 10.

Front

What is the formula to find what percent one number is of another?

Back

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

Front

What is 90% of 250?

Back

225

Front

What percent of 145 is 29?

Back

20%

Front

What is 45% of 50?

Back

22.5

Front

30 is what percent of 40?

Back

75%

Front

78 is what percent of 450?

Back

17%

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.

Front

What is the relationship between fractions, decimals, and percents?

Back

Fractions, decimals, and percents are different ways to represent the same value. For example, 1/2 = 0.5 = 50%.