Yes
Yes
41/9 is a rational number because all fractions are rational numbers
Rational
Yes 9/10 is a rational number.
-1/9 is rational because it can be expressed as a fraction (ratio).
Rational.
Any addition, subtraction, multiplication, or division of rational numbers gives you a rational result. You can consider 8 over 9 as the division of 8 by 9, so the result is rational.
2/9 is rational by definition- it is a ratio of two integers.
yes
No, it is rational.
Yes it is.
Yes. Any rational number divided by another rational number is also rational.