9/7 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
-1/9 is rational because it can be expressed as a fraction (ratio).
Yes a rational number is one which can be represented by one integer over another (possibly the same) integer which cannot be zero. 1 2/7 = (1×7+2)/7 = 9/7 (as an improper fraction) 9/7 is one integer over another integer, so it is a rational number.
It is an irrational number because it can't be expressed as a proper fraction
Any number that can be written as a fraction is rational -- therefore, 4/9 squared is rational (it can still be written as a fraction even if you multiply it by itself).
No because it can be expressed as a fraction in the form of 7/9
If you mean 4/9 as a fraction then it is a rational number
Yes. Any rational number divided by another rational number is also rational.
Yes, it is.
Any rational number is a fraction multiple of 1/9. For example, if you want 7/8 thenp/q = (7/8)*(1/9) = 7/72 is the multiple that you want.
To divide fractions, you multiply the first fraction by the reciprocal of the second fraction. Therefore, the fraction 5/7 divided by 7/9 is equal to (5/7) × (9/7) which simplifies to 45/49.
7 over 9 and 8 over 9.