is -6.5 rational or irrational
-6.5 is a rational number because it can be expressed as a fraction. In fact, -6.5 can be written as -13/2.
A rational number is any number that can be expressed as a fraction of two integers (where the denominator is not zero).
In the case of -6.5, it can be expressed as -13/2, which is a fraction of two integers. Therefore, -6.5 is a rational number.
To determine if a number is rational or irrational, we need to understand the definitions of these terms.
A rational number is any number that can be written as a fraction (or ratio) of two integers, where the denominator is not zero. Rational numbers can be positive or negative, whole numbers, decimals, or fractions.
On the other hand, an irrational number cannot be written as a fraction or ratio of two integers. Irrational numbers are non-repeating, non-terminating decimals. Examples of irrational numbers include √2, π (pi), or e.
Now, let's determine whether -6.5 is rational or irrational:
-6.5 is a decimal number, and we can write it as -13/2, which is a fraction of two integers (-13 and 2). Since -6.5 can be expressed as a fraction of integers, it is considered a rational number.
So, to summarize, -6.5 is a rational number.