To convert 8 mm to inches, we will follow the steps outlined below:

Step 1: Understand the conversion factor

Before we begin the conversion, we should understand that 1 inch is equal to 25.4 mm. This means that to convert from mm to inches, we need to divide the value in mm by 25.4.

Step 2: Write down the given value

In this case, the given value is 8 mm.

Step 3: Set up the conversion equation

To convert mm to inches, we will use the following equation:

[inches] = [mm] ÷ 25.4

Step 4: Substitute the given value in the equation

Now, let’s substitute the value of 8 mm in the equation:

[inches] = 8 ÷ 25.4

Step 5: Simplify the equation

Using a calculator, we can divide 8 by 25.4 to get the result of 0.315 inches.

Step 6: Round off the result (optional)

If we want the result to be in a specific number of decimal places, we can round off the answer. In this case, we will round off the result to three decimal places, which gives us 0.315 inches.

Step 7: Write the final answer

Now, we can write the final answer, which is 8 mm is equal to 0.315 inches.

Therefore, 8 mm is equivalent to 0.315 inches.

In summary, to convert a length value from mm to inches, we need to divide the value in mm by 25.4. This is because 1 inch is equal to 25.4 mm. By following the above steps, we can easily convert any given value from mm to inches.