# Ch 12: Decimals, Percents & Ratios

Brush up on your understanding of operations with decimals, percents and ratios. Look at how to convert between decimals and percents, and review methods of calculating with proportions.

## Decimals, Percents & Ratios - Chapter Summary

In this chapter's lessons, our instructors explain how to solve problems with decimal numbers and percents, and refresh your knowledge of how to change between percents, decimals and fractions. You'll review how to solve interest problems and word problems with percents. Other lessons look at ratios and proportions, including how to perform calculations with them. After you've watched these videos, you should be ready to:

• Solve problems with decimal numbers
• Perform conversions involving percents, fractions and decimals
• Understand word problems with percents
• Explain the steps in solving interest problems
• Define proportion and how it is used
• Execute calculations with proportions and ratios

These lessons are brief and contain plenty of examples to explain their points. You can study on a computer or mobile device as your schedule permits. The quizzes at the end of each lesson allow you to gauge your knowledge and determine what calls for extra study.

10 Lessons in Chapter 12: Decimals, Percents & Ratios
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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