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To convert centimeters (cm) to decimeters (dm), we need to understand the relationship between these two units of length. The metric system, which is based on powers of ten, defines a centimeter as one-hundredth of a meter and a decimeter as one-tenth of a meter. This means that there are 10 centimeters in a decimeter. The conversion factor from centimeters to decimeters is therefore: \[ 1 \text{ dm} = 10 \text{ cm} \] To convert a measurement from centimeters to decimeters, you divide the number of centimeters by 10. Here is a step-by-step guide to performing the conversion: Step 1: Write down the length in centimeters that you want to convert to decimeters. Let's say we want to convert 25 centimeters to decimeters. Step 2: Use the conversion factor to set up the conversion equation. You want to cancel out the centimeters and be left with decimeters. \[ \text{Length in dm} = \text{Length in cm} \times \frac{1 \text{ dm}}{10 \text{ cm}} \] Step 3: Insert the number of centimeters into the equation. \[ \text{Length in dm} = 25 \text{ cm} \times \frac{1 \text{ dm}}{10 \text{ cm}} \] Step 4: Perform the multiplication. The centimeter units will cancel out, leaving you with the measurement in decimeters. \[ \text{Length in dm} = 25 \times \frac{1}{10} \text{ dm} \] \[ \text{Length in dm} = \frac{25}{10} \text{ dm} \] Step 5: Simplify the fraction by dividing 25 by 10. \[ \text{Length in dm} = 2.5 \text{ dm} \] So, 25 centimeters is equal to 2.5 decimeters.

Question

Convert cm to dm.

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