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Is 7divided by 9-9 a rational number?
It would depend on where you put the parentheses. 7/9 - 9 is a rational number 7/(9-9) is not even a number at all - surely not a rational number.
Is 1 and 2 sevenths rational?
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.
Is 9 over 2 a rational or irrational number?
Rational
Is the sum of 9 and 7 irrational?
No because 9+7 = 16 which is a rational number
Numbers that are rational but not integers?
There are an infinitely many amount. An integer is a whole number, e.g. the number 7. A rational number is one that can be written as a fraction. 7 is a rational number, because it can be written as 7/1. But the number 7/9 is rational, but not an integer because it is not a whole number.
