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Published byStephanie Bradford Modified over 9 years ago
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A N I NTRODUCTION TO R ATIOS !
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A comparison between two quantities For every x units of one quantity, there are y units of another A R ATIO IS …
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3 W AYS TO D ISPLAY R ATIOS
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Part to part Part to whole Whole to part Ratios Show Three Scenarios
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Scenario #1: Part to Part
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Scenario #2: Part to Whole
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Scenario #3: Whole to Part
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Example #1: A sixth grade basketball team has 3 centers, 5 forwards, and 6 guards. Write a ratio for each comparison using a colon: Forwards to guards (part to part) 5:6 Centers to total (part to whole) 3:14 Total to guards (whole to part) 14:6 Ratio Word Problem
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Example #3: to Gene has a movie collection. He has 9 Adventure movies, 8 Horror, 5 Sci-Fi, and 12 Comedy. Write a ratio for each comparison using the word, “to.” 8 to 12 Horror to comedy (part to part) 8 to 12 5 to 34 Sci-Fi to total (part to total) 5 to 34 34 to 9 Total to Adventure (total to part) 34 to 9 Ratio Word Problem
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Equivalent Ratios
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Practice – You Try!
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Directions: Write the following ratios in all three ways.
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Practice – You Try!
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