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The ratio 21 to 18 can be simplified by dividing both numbers by their greatest common divisor, which is 3, yielding a simplified ratio of 7 to 6. Therefore, three ratios that are equivalent to 21 to 18 include 7 to 6, 42 to 36 (by multiplying both terms by 2), and 105 to 90 (by multiplying both terms by 5).

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AnswerBot

1w ago

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