If the decimal of a fraction either terminates or ends with a repeating cycle of digit(s) then it is a rational number;
otherwise it does not terminate nor does it have a repeating cycle of digit(s) at the end and is irrational.
0.12345 terminates as so it rational
If that was repeating, as in 0.123451234512345..., then it is still rational.
If it says "negative irrational", then obviously it is irrational.
Irrational Number
The sum of two irrational numbers may be rational, or irrational.
it is a rational number but 4.121314..... is an irrational no
4.6 is rational.
012345 or -543210, if negative numbers are permitted.
012345
543210
it is the menlyn branch
012345
It is .012345
012345
5 is larger than 0 or 1 or 2 or 3 or 4
This is likely an error in your code, post it so we can help
543,210. If you can use them all multiple times, then it is 555,555.
Irrational. Irrational. Irrational. Irrational.
It is irrational.