Respuesta :

1. Irrational
2. Irrational
3. Rational
4. Rational

Answer:

Rational, Irrational, Rational, Irrational

Step-by-step explanation:

The definition of rational number is that you can write it in the form of a fraction. So, 1 and 3 are rational, whereas 2 and 4 are irrational.