Is 1.33333333333 an irrational number

Most numbers with a defined endpoint are not irrational. Therefore, 1.33333333333 is not an irrational number, but 1.3 recurring is an irrational number.

Ans. 2

1.3 recurring is not irrational. In general any decimal that has a repeated pattern that continues to infinity is rational.

1.3 recurring is just 4/3.