Question

Which is a requirement for a number to a rational number?

The number can be written as a fraction.

The denominator is an integer.

The numerator is an integer.

All of the above.

Answer 1

All of the above. that's what it take to be a rational number

Answer 2

ok thanks :D

Answer 3

this can be written like a fraction
\[\frac{\sqrt2}{3}\]
but is it a rational number?