Write the following fractions in number form :
thirteen-one hundred twenty fifth.

Answer

To convert the fraction "thirteen-one hundred twenty fifth" into number form, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Numerator and Denominator**:
- The phrase "thirteen" indicates the numerator, which is 13.
- The phrase "one hundred twenty fifth" indicates the denominator, which is 125.

2. **Write the Fraction**:
- In fraction form, the numerator is placed over the denominator. Therefore, we write it as:
\[ \frac{13}{125} \]

3. **Final Answer**:
- The fraction "thirteen-one hundred twenty fifth" in number form is:
\[ \frac{13}{125} \]