<｜begin▁of▁sentence｜><｜User｜>What is 1.5+102.2?<｜Assistant｜><think>
First, I identify the numbers involved in the addition: 1.5 and 102.2.

Next, I add the whole numbers: 1 + 102 equals 103.

Then, I add the decimal parts: 0.5 + 0.2 equals 0.7.

Finally, I combine the results: 103 + 0.7 equals 103.7.
</think>

To solve the addition \(1.5 + 102.2\), follow these steps:

1. **Add the whole numbers:**
   \[
   1 + 102 = 103
   \]

2. **Add the decimal parts:**
   \[
   0.5 + 0.2 = 0.7
   \]

3. **Combine the results:**
   \[
   103 + 0.7 = 103.7
   \]

So, the final answer is \(\boxed{103.7}\).<｜end▁of▁sentence｜>