1. **Stating the problem:** We need to understand what a rational number is and provide an example.
2. **Definition:** A rational number is any number that can be expressed as the quotient or fraction $$\frac{p}{q}$$ of two integers, where $$p$$ and $$q$$ are integers and $$q \neq 0$$.
3. **Important rules:**
- The denominator $$q$$ cannot be zero because division by zero is undefined.
- Both numerator $$p$$ and denominator $$q$$ must be integers (whole numbers, positive or negative).
4. **Example:**
- $$\frac{3}{4}$$ is a rational number because 3 and 4 are integers and 4 is not zero.
- Another example is $$-\frac{7}{2}$$.
- Even integers like 5 can be written as $$\frac{5}{1}$$, so they are rational numbers too.
5. **Summary:** Rational numbers include fractions, integers, and negative fractions as long as they can be written as $$\frac{p}{q}$$ with integer $$p$$ and nonzero integer $$q$$.
Rational Number B55A20
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