How is -11.3 rational?

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Rivkah Carl, I work at Noodle

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A rational number is a number that is either an integer (whole number) or a number which is the result of a division of two other integers. (and can be put in the form a/b, where "a" and "b" are also integers. Negative numbers can be integers as well. Therefore, -11.3 is a rational number because it can be expressed as a fraction of -113/10 .

Anonymous, Math

Why is 2.1371938... irrational

Mary Fernandez, Math

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Why is the square root of 19 irrational?

Mary Fernandez, Math

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The square root of 19 is irrational because

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