If you mean 4/9 as a fraction then it is a rational number
0.444444444 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its equivalent, in rational form, is 444444444/1000000000. You can simplify this rational fraction if you so wish.
Yes - any proper fraction x/y is a rational number. Expressed as a decimal, this is equal to 0.4 recurring (that is, 0.44444...)
Yes. Any rational number divided by another rational number is also rational.
Yes it is a rational number because it can be expressed as 10/9 as an improper fraction
-0.04 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its equivalent, in rational form, is -4/100. You can simplify this rational fraction if you require.
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).
2.25 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its equivalent, in rational form, is 225/100. You can simplify this rational fraction if you require.
0.444444444 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its equivalent, in rational form, is 444444444/1000000000. You can simplify this rational fraction if you so wish.
9 out of 7 is a rational number. A rational number is any number that can be expressed as a fraction where the numerator and denominator are integers, and the denominator is not zero. In this case, 9/7 can be simplified to 1.28571428571, which is a rational number.
No. sqrt(4/9) = 2/3 is rational. sqrt(0.64) = 0.8 = 4/5 is rational.
-1/9 is rational because it can be expressed as a fraction (ratio).
3/4 is a rational number because it can be written as a fraction. Even a big, clunky fraction like 7,324,908/56,003,492 is rational, simply because it can be written as a fraction.
81 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
It is equivalent to 8/18 or 12/27. It cannot be simplified into a rational #
If there are no numbers after the 9 it is rational
The number (4 \frac{1}{2}) (or 4.5) is a rational number because it can be expressed as the fraction (\frac{9}{2}). Rational numbers are defined as numbers that can be written as the quotient of two integers, and since both 9 and 2 are integers, (4 \frac{1}{2}) is rational.
Yes, 4.444444... is a rational number. It can be expressed as the fraction ( \frac{40}{9} ) because the repeating decimal can be represented as ( 4 + \frac{4}{9} ). Rational numbers are defined as numbers that can be expressed as the quotient of two integers, and since this number fits that definition, it is indeed rational.