# 3: More Types of Fractions- Decimals, Percents, Ratios, and Rates

- Page ID
- 30985

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- 3.1: Introduction to Decimals- Place Value and Reading
- Recall that whole numbers are constructed by using digits.

- 3.2: Decimals as Fractions and Fractions as Decimals
- When converting a fraction to a decimal, only one of two things can happen. Either the process will terminate or the decimal representation will begin to repeat a pattern of digits. In each case, the procedure for changing a fraction to a decimal is the same.

- 3.3: Combining Decimals- Addition and Subtraction with Decimals
- Addition of decimal numbers is quite similar to addition of whole numbers. For example, suppose that we are asked to add 2.34 and 5.25. We could change these decimal numbers to mixed fractions and add.

- 3.7: Percent Increase and Percent Decrease
- A person’s salary can increase by a percentage. A town’s population can decrease by a percentage. A clothing firm can discount its apparel. These are the types of applications we will investigate in this section.