1 1/3. One whole number is 3/3 so 3/3=1 then u put 1/3
8 stamps. Multiply 2/3 by 12 and you have your answer
1/125 in a decimal is 0.008.
To be pefectly honest, your question really doesn't make sense.
160 is a rational number, and there isn't any irrational number that's
related, connected, or tied to it in any particular way.