Whats a Rational again??

A rational number is a number that can be expressed as the ratio of two integers, where the denominator is not zero. It can also be represented as a fraction in the form a/b, where a and b are integers and b is not equal to zero.

To determine if a number is rational, you can follow these steps:

1. Identify the number you want to determine if it is rational.
2. Check if the number can be expressed as a fraction. For example, if the number is 5, it can be expressed as 5/1, which is a fraction.
3. Ensure that the denominator is not zero. Division by zero is undefined.
4. Simplify the fraction, if possible. Simplifying means reducing the fraction to its lowest terms. For example, 8/12 can be simplified to 2/3 by dividing both the numerator and denominator by their greatest common divisor (in this case, 4).
5. If the number can be expressed as a fraction and meets the above conditions, then it is a rational number.

For example, to determine if 1.75 is a rational number:
1. The number can be expressed as 7/4, which is a fraction.
2. The denominator, 4, is not zero.
3. The fraction 7/4 cannot be simplified any further.
4. Therefore, 1.75 is a rational number.

I hope this explanation helps! Is there anything else you would like me to explain?