Its decimal representation does not terminate.
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a rational number repeats but terminates.ex:3.333333333. a irrational number doesn't terminate or repeat itself. ex:3.334334433444.
Decimals that terminate or repeat in some fashion are rational, while decimals that expand forever are irrational.
Yes. Rational numbers are numbers or decimals that repeat or terminate. Irrational numbers do not. For example π is an irrational number.
Numbers that never repeat or terminate are called irrational numbers. Pi is one example.
No 0.57 = 57/100 All decimal numbers which terminate or end with a repeating cycle of 1 or more digits are rational numbers. All decimal numbers that do not terminate and do not repeat are irrational.