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.
If there are no numbers after the 9 it is rational
It is equivalent to 8/18 or 12/27. It cannot be simplified into a 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.
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.