Yes, it is.
No, but three over eight is.
yes, 1/9 is a rational number, also written as .11111111111111...Even though the decimal expansion is infinite, it is also a recognizable pattern, and hence rational.
6.444444444444444
Yes. Any rational number divided by any other rational number is a rational number.
It is 5 and 1/3 in its simplest form as a mixed number
It is irrational because when you divide 2 by 8 you get a terminating decimal,0.205.
five over eight is less than nine over ten
Rational.
It's rational. It's the ratio of -1 to 9 .
is 5 over 7 a rational number
15/7 is a rational number