5, -7.986543, 37/91, sqrt(64), 193 are all rational.
sqrt(2), pi, e, cuberoot(32) are all irrational.
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yes * * * * * No. Rational and irrational numbers are two DISJOINT subsets of the real numbers. That is, no rational number is irrational and no irrational is rational.
The square roots of three are examples of irrational numbers.
All irrational numbers are not rational.
All rational and irrational numbers are real numbers.
Rational=1.25,1.5,1.75 Irrational= 1.3333333333,1.66666666666,1.999999999