All rational numbers can be expressed as fractions whereas Irrational Numbers can't be expressed as fractions.
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It is an integer. All integers are rational but not irrational. All rational and irrational numbers are real numbers.
Because irrational numbers are defined as all real numbers which are not rational.
Yes, every irrational number is also a real number. Real numbers include all the numbers on the number line, which consists of both rational and irrational numbers. Rational numbers can be expressed as fractions, whereas irrational numbers cannot be expressed as simple fractions. So, while all irrational numbers are real numbers, not all real numbers are irrational—some are rational.
All irrational numbers are not rational.
All rational and irrational numbers are real numbers.