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Using Tables to find equivalent Ratios and rates and create proportions

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# Using Tables to find equivalent Ratios and rates and create proportions - PowerPoint PPT Presentation

Using Tables to find equivalent Ratios and rates and create proportions. Objective: Learn to use a table to find equivalent ratios and rates. . TO create a table of equivalent ratios or rates…. Use the same method you used to create equivalent ratios.

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### Using Tables to find equivalent Ratios and ratesand create proportions

Objective:

Learn to use a table to find equivalent ratios and rates.

TO create a table of equivalent ratios or rates…
• Use the same method you used to create equivalent ratios.
• Multiply or divide the numerator and denominator of a known ratio or rate by the same number.
• Now we create a table…
• We used the table to find 5 equivalent ratios. The equivalent ratios are:

3= 6 = 9 = 12 = 15

4 8 12 16 20

Your example:
• Complete the table to create five ratios equivalent to 4

9.

Write the 5 equivalent ratios.

Creating Proportions
• A proportion is a statement that shows two ratios are equal, or proportional.
• Proportions can be written in word or numbers.

For example: 1 = 3 or “One is to two as three is to six.”

2 6

• Complete the table, use the ratios to create three proportions with 2

5

Homework:

In 3-5, make a table and create 3 equal ratios. Use the ratios to write 3 proportions.

9

20

4. 3

11

5. 7

21

• Use multiplication to complete the table to find five equivalent ratios.

2. Complete the table to find 5 equivalent ratios.