This math chapter workbook on "Ratios" begins by introducing the definition of a ratio and how it compares two quantities. Students will learn about the different ways to represent ratios: using the colon (3:2), as a fraction (3/2), and in words ("3 to 2"). Students will practice simplifying ratios by finding the greatest common divisor. This workbook also includes solving problems involving equivalent ratios and understanding how to find missing values in a set of equivalent ratios.

A problem could ask students to find the ratio of apples to oranges if a basket contains 8 apples and 4 oranges, which is simplified to 2:1. Another type of problem could involve scaling recipes, such as adjusting the quantity of ingredients for a larger group. If a recipe requires 2 cups of flour for 4 servings, students can find how much flour is needed for 10 servings by setting up the ratio of 2/4 = x/10 and solving for x. Students may also encounter problems like determining the proportion of boys to girls in a class and using this ratio to predict the number of boys in a different-sized class. By setting up equivalent ratios and using cross-multiplication or unit rates, students can solve these types of problems effectively.