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Yes the fraction 2/5 is rational, as it can be expressed as the ratio of 2 integers (in this case 2 and 5 are both integers)
Bailee Hand
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Is 1000000 a rational number?
Yes
Is a rational number times a irrational number?
Can be irrational or rational.1 [rational] * sqrt(2) [irrational] = sqrt(2) [irrational]0 [rational] * sqrt(2) [irrational] = 0 [rational]
Is 2 squared rational or irrational?
The square of any rational number is also rational.
Is negative 2 3rds rational?
-2/3 is a rational number
Is 2 irrational?
No because -2 is a rational number
Is 1over 2 rational or irrational?
Rational.
What is a counterexample for the rational numbers are closed under the operation of taking a square root?
2 = 2/1 is rational. Sqrt(2) is not rational.
Is -2 irrational or rational?
No. It is a rational number. Since it can be expressed in the form p/q = 2/1 where 2,1 are integers.
Is 18 out of 2 rational?
Yes, any number that can be expressed as a fraction is rational. Since 18 out of 2 is the same as 18/2, it is rational.
What is -2 rational number?
The given whole number of -2 is a rational number
Is 2 a rational number or irrational?
It is rational. It is a whole number so it cannot be irrational.
How many rational numbers can be put between 2 and7?
There are an infinite number of rational numbers between any two rational numbers. And 2 and 7 are rational numbers. Here's an example. Take 2 and 7 and find the number halfway between them: (2 + 7)/2 = 9/2, which is rational. Then you can take 9/2 and 2 and find a rational number halfway: 2 + 9/2 = 13/2, then divide by 2 = 13/4. No matter how close the rational numbers become, you can add them together and divide by 2, and the new number will be rational, and be in between the other 2.
