Background:
• Irrational number: a real number that cannot be represented as a simple fraction.
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• Rational number: real numbers, which is in the form of p/q where q is not equal to zero. Can be represented as a simple fraction.
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• Integer: any rational number that can be expressed as the sum or difference of a finite number of units.
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• Whole number: part of the number system in which it includes all the positive integers from 0 to infinity.
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• Natural number: integers that generate from 1 and go up to infinity.
Answer:
• Rational number
