can someone tell me if this is an irrational or rational number

Question

-155.233333333

Answer 1

a repeating decimal is not an irrational number in general, even if the first few digits are not part of the pattern.

Answer 2

100 n=-15523.3333333
10 n = -1552.3333333

100n-10n = 90 n = -13971

n = -13971 / 90

Answer 3

155.233