They make up the Real numbers.
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Imaginary numbers are not intrinsically rational or irrational.Of course, all real numbers are either rational or irrational numbers.Imaginary numbers are not real numbers.Imaginary numbers have a real part and an imaginary part, sometimes written like z=x+i y.The two parts, i.e. the x and the y, are real numbers. As real numbers, they are either rational or irrational. Its just that the two parts of a complex number may both be either rational or irrational or one may be rational and the other irrational. One could always make up a new name for these cases, but right now there is no such classification.
Yes - if I had an irrational number x, and I added that to the number (7-x), I would end up with 7.If the number is irrational, it can be subtracted from a rational/integer to make another irrational.
An irrational number is a number that has no definite end. So it can't be multiplied or divided by anything to make a rational number that does have a definite end.
Can you make a fraction from it? -14.3 = -143/100 A fraction is a ratio, therefore rational. This is a rational number. ■
If, by fraction, you mean a number which can be written in the form p/q where p and q are integers and q>0, then none of them are irrational.If you mean a number which can be written as x/q where x is real and q is a positive integer, then it is irrational whenever x is irrational.