Ratios Study Guide

1. Definition: A ratio is a comparison of two quantities.
2. Representation: Ratios can be represented in different ways, such as using a colon (e.g. 3:2), as a fraction (e.g. 3/2), or using the word "to" (e.g. 3 to 2).
3. Simplifying Ratios: Just like fractions, ratios can be simplified by dividing both numbers by their greatest common factor.
4. Application: Ratios are used in various real-life scenarios, such as in cooking recipes, financial calculations, and understanding proportions.
5. Proportions: Understanding ratios is important for understanding proportions, where two ratios are set equal to each other.

Example

Suppose you have a bag of fruit containing 5 apples and 3 oranges. The ratio of apples to oranges is 5:3. This ratio can be represented as the fraction 5/3.