1. **State the problem:** We need to rewrite the given expression in a clean, readable format. 2. **Given expression:** $$\text{ans} = \frac{kp \cdot \bigl(L4 + kp^{2} kr + L4 kp^{2} krs^{2} + kp^{4} kr krs^{2} + L1 L4 kr + L2 L4 kr + L3 L4 kr + 2 L1 L4 krs + L2 L4 krs + L3 L4 krs + L1 L2 L4 krs^{2} + L1 L3 L4 krs^{2} + 2 L1 kp^{2} kr krs + L2 kp^{2} kr krs + L3 kp^{2} kr krs + L4 kp^{2} kr krs + L1 L4 kp^{2} krs^{3} + L1 kp^{4} kr krs^{3} + L1 L2 L4 kr krs + L1 L3 L4 kr krs + L1 L2 kp^{2} kr krs^{2} + L1 L3 kp^{2} kr krs^{2} + L1 L4 kp^{2} kr krs^{2}\bigr)}{kp^{2} + kp^{4} krs^{2} + L1 L4 + L2 L4 + L3 L4 + L1 kp^{4} krs^{3} + 2 L1 kp^{2} krs + L2 kp^{2} krs + L3 kp^{2} krs + L4 kp^{2} krs + L1 L2 kp^{2} krs^{2} + L1 L3 kp^{2} krs^{2} + L1 L4 kp^{2} krs^{2} + L1 L2 L4 krs + L1 L3 L4 krs}$$ 3. **Explanation:** This is a rational expression with a numerator and denominator containing multiple terms involving variables $kp$, $kr$, $krs$, and constants $L1$, $L2$, $L3$, $L4$. 4. **Clean format:** $$\text{ans} = \frac{kp \times \Bigl( L4 + kp^{2} kr + L4 kp^{2} krs^{2} + kp^{4} kr krs^{2} + L1 L4 kr + L2 L4 kr + L3 L4 kr + 2 L1 L4 krs + L2 L4 krs + L3 L4 krs + L1 L2 L4 krs^{2} + L1 L3 L4 krs^{2} + 2 L1 kp^{2} kr krs + L2 kp^{2} kr krs + L3 kp^{2} kr krs + L4 kp^{2} kr krs + L1 L4 kp^{2} krs^{3} + L1 kp^{4} kr krs^{3} + L1 L2 L4 kr krs + L1 L3 L4 kr krs + L1 L2 kp^{2} kr krs^{2} + L1 L3 kp^{2} kr krs^{2} + L1 L4 kp^{2} kr krs^{2} \Bigr)}{kp^{2} + kp^{4} krs^{2} + L1 L4 + L2 L4 + L3 L4 + L1 kp^{4} krs^{3} + 2 L1 kp^{2} krs + L2 kp^{2} krs + L3 kp^{2} krs + L4 kp^{2} krs + L1 L2 kp^{2} krs^{2} + L1 L3 kp^{2} krs^{2} + L1 L4 kp^{2} krs^{2} + L1 L2 L4 krs + L1 L3 L4 krs}$$ This format clearly separates numerator and denominator and groups terms for readability.