Percentage is a way of expressing a number as a fraction of 100. It is often used to compare quantities and to express proportions.

To calculate the percentage of a number, you can use the following formula:

Percentage = (Part/Total) * 100

For example, if you want to find 25% of 80, you would use the formula:

Percentage = (25/100) * 80 = 0.25 * 80 = 20

To convert a percentage to a decimal, you can simply divide the percentage by 100. For example, 25% as a decimal would be 0.25.

To convert a percentage to a fraction, you can write the percentage as a fraction with a denominator of 100, and then simplify if possible. For example, 25% as a fraction would be 25/100, which simplifies to 1/4.

Percentages are used in many real-life situations, such as calculating discounts, expressing interest rates, and understanding proportions in data analysis.

Here are some key points to remember when working with percentages:

- Percentage is a way of expressing a number as a fraction of 100.
- To calculate a percentage, use the formula: Percentage = (Part/Total) * 100
- To convert a percentage to a decimal, divide by 100.
- To convert a percentage to a fraction, write the percentage as a fraction with a denominator of 100 and simplify if possible.
- Percentages are used in various real-life applications such as discounts, interest rates, and data analysis.

Practice calculating percentages and converting between percentages, decimals, and fractions to strengthen your understanding of this topic.

Study GuidePercentage Activity LessonPercent Problem Worksheet/Answer key

Percentage Worksheet/Answer key

Percentage Worksheet/Answer key

Percentage Worksheet/Answer key

Percentage Worksheet/Answer key

Percentage Worksheet/Answer key

Percentage

Number and Operations (NCTM)

Understand numbers, ways of representing numbers, relationships among numbers, and number systems.

Work flexibly with fractions, decimals, and percents to solve problems.