Ratios, Proportions, and Percents

## Comparing Quantities Ratios help you compare two amounts, like the number of apples to oranges. Proportions show that two ratios are equal. Percents are a special way to show ratios out of 100. ### How to Use Them - Ratios: If there are 2 cats for every 3 dogs, the ratio is 2:3. - Proportions: If 1/2 = 2/4, that's a proportion! - Percents: 50% means 50 out of 100. ### Solving Ratio Problems Set up proportions to solve real-life problems, like mixing juice or finding discounts during sales. ### Why Are They Important? These concepts are used in cooking, shopping, and comparing test scores. ### Common Formula - Percent: \( \text{Percent} = \frac{\text{Part}}{\text{Whole}} \times 100 \)