Question

and how to know that this answer is a rational number​

Answer 1

Answer:

A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers. The number 8 is a rational number because it can be written as the fraction 8/1.

Answer 2

Answer:

A rational number is any number that satisfies the following three criteria:

• It can be expressed in the form of a simple fraction with a numerator (p) divided by a (/) a denominator (q).
• Both the numerator and the denominator must be regular integers themselves. ...
• The denominator (q) cannot be zero.

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