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No. An irrational number cannot be expressed as a/b where a and b are integers, b not zero. 18 = 18/1 = 36/2 = -36/-2 etc.

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Q: Is 18 an irrational
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Related questions

Is the sum of 18 plus the square root of 10 rational or irrational?

As √10 is irrational, 18 + √10 is irrational.


Is -12 divided by 6 rational or irrational?

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Is the square root of negative 18 rational or irrational?

It is neither because the square root of -18 is an imaginary number but the square root of 18 is irrational


Are the product of irrational always is irrational?

No. Sqrt(2)*sqrt(18) = 6.


Is the square root of 18 a rational or irrational number?

The square root of 18 is an irrational number because it cannot be expressed as a fraction.


Is the sum of 18 plus the square root of 10 rational oris the sum of 18 plus the square root of 10 rational or irrational?

It is irrational.


Is 18 rational or irrational?

irrational


Is the square root of 18 a irrational number?

Yes


What is 4 18 is it rational or irrational?

It is a rational number


Is the square root of 324 irrational?

No. √324 = 18 = 18/1 = a rational number.


What type of numbers is square root 18?

sqrt(18) = 3*sqrt(2) is an irrational number.


Is 18 an irrational number?

NO!! Irrational Numbers are those where the decimal digits go to infinity AND there is no regular order in the decimal digits. pi = 3.141592.... is the most well known irrational number. as are the 'Square roots' od prime numbers;-# sqrt(2) = 1.414213.... sqrt(3) = 1.73205... sqrt(5) = 2.23606... However, such as numbers as 3.3333..... is NOT irrational, because the decimals are in regular order. Similarly 2.373737.... or 5 .678678678.... Are NOT irrational because the decimals are in a regular order. NB '....''' at the end of a decimal is the mathematical indication of recurring to infinity.