The mixed number \(1 \frac{1}{4}\) can be converted to an improper fraction for simplicity. To convert it:
- Multiply the whole number (1) by the denominator (4): \(1 \times 4 = 4\).
- Add the numerator (1) to this result: \(4 + 1 = 5\).
- Place this sum over the original denominator: \(\frac{5}{4}\).
So, the simplified version of \(1 \frac{1}{4}\) as an improper fraction is \(\frac{5}{4}\).