396 mm to inches

Understand the Problem

The question is asking for the conversion of a measurement from millimeters to inches. To solve it, we will use the conversion factor where 1 inch equals 25.4 millimeters.

Answer

$$ \text{Inches} \approx 3.94 $$
Answer for screen readers

$$ \text{Inches} \approx 3.94 $$

Steps to Solve

  1. Identify the conversion factor

To convert from millimeters to inches, we will use the conversion factor:
$$ 1 \text{ inch} = 25.4 \text{ millimeters} $$

  1. Set up the conversion equation

To find the number of inches from a given millimeter value (let's call it $x$ mm), we will explore the relationship using the conversion factor. The formula for conversion will be:
$$ \text{inches} = \frac{x \text{ mm}}{25.4 \text{ mm/inch}} $$

  1. Perform the calculation

Substitute the value of $x$ (the measurement in millimeters) into our equation to find the measurement in inches.
For example, if $x = 100$ mm, the equation is:
$$ \text{inches} = \frac{100 \text{ mm}}{25.4 \text{ mm/inch}} $$

  1. Calculate the result

Using a calculator for the division:
$$ \text{inches} \approx \frac{100}{25.4} \approx 3.937 $$

  1. Round or format the answer accordingly

Depending on the requirements, you may need to round your answer to a certain number of decimal places. Here, let’s round to two decimal places. So, the result will be:
$$ \text{inches} \approx 3.94 $$

$$ \text{Inches} \approx 3.94 $$

More Information

This result shows how you can convert measurements from millimeters to inches using the relationship where 1 inch equals 25.4 millimeters. This conversion is commonly used in various fields such as engineering, carpentry, and everyday measurements.

Tips

  • Forgetting to use the conversion factor correctly can lead to errors.
  • Mixing up which value goes in the numerator and which goes in the denominator.
  • Not rounding the final answer as required, leading to imprecise results.
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