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


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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 rates and create proportions

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Using tables to find equivalent ratios and rates and create proportions

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

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

Your example:

  • Complete the table to create five ratios equivalent to 4

    9.

    Write the 5 equivalent ratios.


Creating proportions

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

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.


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