Percentages and Conversions

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 percentage to a decimal?

Back

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

Front

How do you convert a decimal to a percentage?

Back

To convert a decimal to a percentage, multiply the decimal by 100. For example, 0.3 becomes 30%.

Front

What is 10% of a number?

Back

To find 10% of a number, divide the number by 10. For example, 10% of 50 is 5.

Front

What is 50% of a number?

Back

To find 50% of a number, divide the number by 2. For example, 50% of 80 is 40.

Front

What is 25% of a number?

Back

To find 25% of a number, divide the number by 4. For example, 25% of 100 is 25.

Front

What is 1% of a number?

Back

To find 1% of a number, divide the number by 100. For example, 1% of 200 is 2.

Front

How do you find the percentage of a total?

Back

To find the percentage of a total, divide the part by the whole and multiply by 100. For example, if you have 20 out of 50, the percentage is (20/50) * 100 = 40%.

Front

What is the formula for calculating percentage?

Back

Percentage = (Part / Whole) * 100.

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by dividing the numerator by the denominator and multiplying by 100.