1/2 is NOT an integer, 1/3 and the number Pi are not integers either.
Look at it the other way - by reverting the operation. The reason it is not a whole number is because if it where, then the subtraction of two integers would be a fraction! If a + b = c (a is a non-integer fraction, b and c are integers), then c - b = a. You would have a fraction as a result of subtracting two integers. However, adding or subtracting two integers always gives you an integer.
An irrational number is a number that can't be expressed by a fraction having integers in both its numerator and denominator.
The concept of GCF makes sense only for integers. Any fraction can be divided by any non-zero fraction, so every non-zero number is a common factor of any set of fractions.
An irrational number is a number that can't be expressed by a fraction having integers in both its numerator and denominator.
A rational number is defined as a number that can be expressed as a ratio of two integers. A ratio of two integers is also known as a fraction.
It is a rational number.
The are an infinite number of rational numbers that are not integers, because a rational number is a number that is written as a ratio of two integers. For examble, 1/2 (i.e. a half) is a non-integer rational number. This form is generally called a fraction.
It is any number in the form (2*k)/(10*k) where k is any non-zero number such that the two numbers are integers.
Any number that can be expressed as a fraction is a rational number which includes integers because as for example 5 as a fraction is 5/1
It is a rational number.
It is a rational number.