It appears that you have shared a handwritten math problem in Vietnamese. It includes tasks like comparing numbers and performing various arithmetic operations.

Here are the key points from the document:

1. **Comparison of numbers**:
- Comparing -37634 and 3.7654.

2. **Arithmetic operations**:
- A series of fractions and addition/subtraction calculations involving terms like \( -\frac{1}{2} \), \( -\frac{1}{3} \), \( \frac{1}{4} \), etc.

If you need assistance with specific calculations or explanations, feel free to ask!