Converting Percentages and Decimals

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare proportions.

Front

How do you convert a decimal to a percentage?

Back

To convert a decimal to a percentage, multiply the decimal by 100 and add a percent sign (%). For example, 0.75 becomes 75%.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 25% becomes 0.25.

Front

What is the formula to find the percentage of a number?

Back

The formula to find the percentage of a number is: (Percentage / 100) * Total Number.

Front

What is 50% of 200?

Back

100

Front

What is 25% of 80?

Back

20

Front

If 30 out of 60 students passed a test, what percent passed?

Back

50% (30/60 = 0.5, which is 50%).

Front

What is the ratio of 30 to 60 expressed as a percentage?

Back

50% (30/60 = 0.5, which is 50%).

Front

How do you find the total when given a percentage?

Back

To find the total when given a percentage, divide the part by the percentage (in decimal form). For example, if 30 is 60%, the total is 30 / 0.6 = 50.

Front

What is the percent increase from 50 to 75?

Back

50% increase ( (75-50)/50 * 100 = 50%).