1 / 10

Identifying and Writing Proportions

Identifying and Writing Proportions. Objective: Learn to find equivalent ratios and identify proportions. Ratio Recap. A ratio is a comparison of two quantities(numbers) using division. Try This!. What is the ratio of shaded squares to unshaded squares? box 1 box 2.

lyn
Download Presentation

Identifying and Writing Proportions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Identifying and Writing Proportions Objective: Learn to find equivalent ratios and identify proportions.

  2. Ratio Recap A ratio is a comparison of two quantities(numbers) using division

  3. Try This! What is the ratio of shaded squares to unshaded squares? box 1 box 2 These 2 ratios are called equivalent ratios GCF of 20 and 28

  4. Equivalent Ratios • What are Equivalent Ratios? Equivalent ratios are ratios that make the same comparison • Examples: These equivalent ratios are proportional. Multiply by any number

  5. Proportional • What is a Proportional or in Proportion? Proportions are equivalent ratios that are identical when in simplest form. • Examples:

  6. Try This! Determine whether the ratios are proportional. • . • . Already reduced Simplify

  7. Try These! Divide both the numerator and the denominator by a common factor Write the proportion Multiply both the numerator and the denominator by any number Write the proportion

  8. Example 1: Determine whether the ratios are proportional.

  9. Example 2: Directions for making 12 servings of rice call for 3 cups of rice and 6 cups of water. For 40 servings it calls for 10 cups of rice and 19 cups of water. Are the ratios of rice to water proportional for both servings of rice.

  10. Example 3: Find an equivalent ratio. Then write the proportion.

More Related