Rational, in that it can be expressed as a ratio; 14/5.
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Well, honey, 2.8 is rational because it can be expressed as a fraction, in this case as 28/10. So, yes, it's rational, but don't let that stop you from enjoying a slice of pi every now and then.
Is the square root of 28 rational or irrational
Rational
No
If x is rational the it is rational. If x is irrational then it is irrational.
They can be rational, irrational or complex numbers.They can be rational, irrational or complex numbers.They can be rational, irrational or complex numbers.They can be rational, irrational or complex numbers.