1. **State the problem:** Simplify the expression $$\frac{x+1}{x-4} - \frac{x+4}{5x-20}$$.
2. **Identify the denominators:** The denominators are $x-4$ and $5x-20$.
3. **Factor the second denominator:**
$$5x-20 = 5(x-4)$$
4. **Find the common denominator:** The least common denominator (LCD) is $$5(x-4)$$.
5. **Rewrite each fraction with the LCD:**
$$\frac{x+1}{x-4} = \frac{5(x+1)}{5(x-4)}$$
$$\frac{x+4}{5(x-4)}$$ stays the same.
6. **Rewrite the expression:**
$$\frac{5(x+1)}{5(x-4)} - \frac{x+4}{5(x-4)} = \frac{5(x+1) - (x+4)}{5(x-4)}$$
7. **Simplify the numerator:**
$$5(x+1) - (x+4) = 5x + 5 - x - 4 = (5x - x) + (5 - 4) = 4x + 1$$
8. **Final simplified expression:**
$$\frac{4x + 1}{5(x-4)}$$
**Answer:** $$\frac{4x + 1}{5(x-4)}$$
Simplify Rational 581C53
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.