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No because 4.2 is a rational number that can also be expressed as a fraction whereas Irrational Numbers can't be expressed as fractions.
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Continue Learning about Algebra
Is square root of 42 rational or irrational?
The square root of 42 is an irrational number
Is 11 over 42 an irrational number?
No because 11/42 is a rational number
Is radical 42 irrational?
Yes, it is.
The sum of a rational number and an irrational number is?
The sum of a rational and irrational number must be an irrational number.
Whether a rational number multiplied by an irrational number gives an irrational number?
rational * irrational = irrational.
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