If it can be expressed as a ratio of whole numbers ... like "two out of nine" ... then it is by definition a rational number.
Yes.
It is -7/9
Yes.
The product of two rational numbers is always a rational number.
If it can be expressed as a ratio of whole numbers ... like "two out of nine" ... then it is by definition a rational number.
Yes, it is. Because it can be expressed as a ratio of two integers: 2/9.
Yes.
2 4/9 (two and four ninths)
The answer is -3.5
two fifths
Two thirds minus two ninths is 4 ninths. Two thirds is 6 ninths. 6 ninths minus 2 ninths is 4 ninths.
It is -7/9
Yes.
The product of two rational numbers is always a rational number.
4
Not sure what eleeven and nith are but if you mean eleven ninths, the answer is RATIONAL.