## Different Ways to Represent Ratios

## Formative Assessment

# Summary of the Math: Different Ways to Represent Ratios

**Read and Discuss**

- You learned the definition of a ratio.
- A
*ratio*is a comparison of two numbers by division. - The
*value*of a ratio is the quotient that results from dividing the two numbers. For example, the value of the ratio 21:3 is 7, which we find by computing 21 ÷ 3 = 7.

- A
- A ratio is a
*relative*comparison. It tells us about one quantity in terms of another quantity. In contrast, a comparison by subtraction is an*absolute*comparison. It tells us the difference between two quantities. - There are different ways to represent ratios, including:
- Using colon notation (2:5)
- As a decimal (0.4)
- As a fraction ($\frac{2}{5}$)

Can you:

- Define a ratio?
- Represent a ratio in different ways?
- Explain the difference between comparisons that use ratios and comparisons that use subtraction?