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The number 7.2222222 is rational because it can be expressed as a fraction. Specifically, it can be written as ( \frac{72222222}{10000000} ) or in a simpler form as ( \frac{7222222}{1000000} ). Rational numbers are defined as numbers that can be expressed as a ratio of two integers, and since 7.2222222 meets this criterion, it is classified as rational.

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2w ago

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