Chapter 3.3
Introduction to Ratios: Understanding Proportional Relationships
Dive into the world of ratios and learn how to compare quantities effectively. Master ratio notation, simplification, and real-world applications to enhance your problem-solving skills in mathematics and everyday life.
What You'll Learn
Write ratios in multiple forms including colon notation, fractions, and percents
Simplify ratios to lowest terms by identifying and dividing by common factors
Convert ratios with decimals and fractions into integer form
Apply unit conversions to simplify ratios with different measurement units
Solve real-world word problems using ratio relationships and proportional reasoning
What You'll Practice
1
Reducing two-term and three-term ratios to simplest form
2
Converting ratios between notation formats (colon, fraction, percent)
3
Scaling ratios up and down to find equivalent ratios
4
Solving allocation problems where quantities are divided by ratio
5
Working with ratios involving time, distance, money, and measurements
Why This Matters
Understanding ratios is fundamental for comparing quantities in everyday lifefrom cooking recipes and mixing paints to budgeting money and analyzing data. Mastering ratios prepares you for proportions, rates, percentages, and scaling problems in algebra, geometry, and beyond.
Before You Start — Make Sure You Can:
This Unit Includes
21 Video lessons
Practice exercises
Learning resources
Skills
Ratios
Simplification
Equivalent Ratios
Unit Conversion
Proportional Reasoning
Fractions
Word Problems
Scale Factor
OH Curriculum Aligned
