45mm = _________ m

Answer

To convert 45 millimeters (mm) to meters (m), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Conversion Factor**:
We know that 1 meter is equal to 1000 millimeters. This means that to convert millimeters to meters, we need to divide the number of millimeters by 1000.

\[ 1 \, \text{m} = 1000 \, \text{mm} \]

2. **Set Up the Equation**:
To find out how many meters are in 45 mm, we can set up the equation:

\[ \text{meters} = \frac{\text{millimeters}}{1000} \]

Substituting the given value:

\[ \text{meters} = \frac{45 \, \text{mm}}{1000} \]

3. **Perform the Division**:
Now, we will perform the division:

\[ \text{meters} = \frac{45}{1000} \]

This can also be expressed as:

\[ \text{meters} = 0.045 \, \text{m} \]

4. **Final Answer**:
Therefore, 45 mm is equal to 0.045 m.

### Final Result:
\[ 45 \, \text{mm} = 0.045 \, \text{m} \]

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