it's rational... take any whole number and put it over a one (a fraction with one as the denominator)... voila! it's a rational number.. -1 would be -1/1
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A rational number is any number that is not irrational - that is, it can be designated with numbers (2, -5, 0, 1/3, 0.14, etc.) A non-negative rational number number is exactly what it sounds like. It's any rational number that is not negative.
The product of an irrational number and a rational number, both nonzero, is always irrational
Let `a` be a rational number and `b` be an irrational number,assume that the sum is rational. 1.a +b =c Where a and c are rational and b is irrational. 2.b=c-a Subtracting the same number a from each side. 3.b is irrational c-a is a rational number we arrived at a contradiction. So the sum is an irrational number.
Negative 1 is a rational number. It is an integer (though not a counting number) and all integers are rational.
As a number which can be expressed as a fraction, 1/2 is a rational number.