Add :
`1 1/4+3 1/2`

Explanation

To solve the problem of adding the mixed fractions \(1 \frac{1}{4} + 3 \frac{1}{2}\), we will follow these steps:

### Step 1: Convert Mixed Fractions to Improper Fractions
First, we need to convert each mixed fraction into an improper fraction.

For \(1 \frac{1}{4}\):
- The whole number part is \(1\) and the fractional part is \(\frac{1}{4}\).
- To convert it, we use the formula:
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