๐ Topic Summary
Ratios are used to compare two or more quantities. A ratio shows how much of one thing there is compared to another. For example, if you have 3 apples and 2 oranges, the ratio of apples to oranges is 3 to 2, which can be written as 3:2 or $\frac{3}{2}$. Ratios help us understand proportions and relationships between different amounts.
Understanding ratios is crucial because they appear everywhere in daily life, from cooking and baking to calculating distances on maps and understanding financial statements. Mastering ratios lays a strong foundation for more advanced math concepts like proportions, percentages, and scale drawings.
๐ค Part A: Vocabulary
Match the following terms with their definitions:
| Term |
Definition |
| 1. Ratio |
A. A comparison of two quantities using division. |
| 2. Proportion |
B. A statement that two ratios are equal. |
| 3. Equivalent Ratios |
C. Ratios that represent the same comparison. |
| 4. Rate |
D. A ratio that compares two quantities with different units. |
| 5. Unit Rate |
E. A rate with a denominator of 1. |
Answer Key: 1-A, 2-B, 3-C, 4-D, 5-E
โ๏ธ Part B: Fill in the Blanks
Complete the following paragraph using the words provided: comparison, quantities, ratio, equivalent, proportion.
A ______ is a ______ of two ______. It shows the relationship between them. When two ratios are ______ to each other, they form a ______. Understanding these terms is essential for working with ratios.
Answer: ratio, comparison, quantities, equivalent, proportion
๐ค Part C: Critical Thinking
Explain, in your own words, how ratios are used in everyday life. Provide at least two specific examples.