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It is rational because it can be expressed as a fraction which is 21/5

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12y ago

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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 10.01 a rational or irrational number?

10.01 is Rational. IRRATIONAL are those decimals, which recur to infinity and there is NO regular order in the decimal digits. pi = 3.141592..... is Irrational But 3.333333..... is rational , because the decimal digits are in a regular order. Definitely an irrational number cannot be converted into a rational number/ratio/fraction/quotient. So 10.01 is rational because it can be converted to a ratio/fraction/quotient of 10 1/100 or 1001/100


Is -42 rational or irrational?

-42 is rational. All integers are rational numbers as they can be expressed as the number over 1 which, being one integer over another integer, is the form of a rational number.


Is the square root of 42 rational or irrational?

Irrational.


Is 37.5 a rational or irrational number?

Rational


Is 0.05 a rational or irrational number?

It is a rational number.


Is 34.5 rational or irrational?

is 34.54 and irrational or rational. number


When an irrational number is divided by a rational number is the quotient rational or irrational?

Irrational.


Is 4.121314 is a rational number or irrational?

it is a rational number but 4.121314..... is an irrational no


Is the product of a rational number and an irrational number rational or irrational?

Such a product is always irrational - unless the rational number happens to be zero.


What is the product of rational and irrational number?

The product of a rational and irrational number can be rational if the rational is 0. Otherwise it is always irrational.