To convert 75 mm to inches, we will use the fact that 1 inch is equal to 25.4 mm. This means that in order to convert mm to inches, we will need to divide the length in mm by 25.4.
Step 1: Write down the given length value in mm, which in this case is 75 mm.
Step 2: Set up the conversion factor by writing the ratio of mm to inches, which is 1 mm = 25.4 inches.
Step 3: Next, we will create a proportion by setting the given length over the conversion factor. This will look like: 75 mm / 1 mm = x inches / 25.4 inches.
Step 4: To solve for x, we will cross multiply. This means we will multiply 75 by 25.4, and divide the result by 1. The equation will look like: 75 x 25.4 / 1 = x. Using a calculator, we get x = 1905 / 1 = 75 inches.
Step 5: Now, we know that 75 mm is equivalent to 75 inches. However, this is not our final answer as we want the value in just inches. So, we will need to round the answer to the nearest inch. In this case, 75 inches is already the nearest inch, so our final answer is simply 75 inches.
Therefore, 75 mm is equal to 75 inches.
In conclusion, to convert a length value from mm to inches, we divide the given length in mm by 25.4. This method can be used for any mm to inches conversion, just remember to set up the equation in the form of a proportion and solve for x using cross multiplication.