To convert pounds (lbs) to kilograms (kg), you can use the following step-by-step instructions:

Step 1: Understand the conversion factor

1 lb is equal to approximately 0.45359237 kg. This is the conversion factor we will use to convert pounds to kilograms.

Step 2: Set up the conversion equation

To convert 9 lbs to kg, we can set up the equation as follows:

9 lbs * (0.45359237 kg/1 lb)

Step 3: Cancel out the units

In the equation, the unit “lbs” appears in both the numerator and denominator. This allows us to cancel out the unit and only keep the desired unit “kg”.

Step 4: Perform the calculation

Now, we can multiply the numerical values:

9 * 0.45359237 = 4.08233133

Step 5: Round the result (if necessary)

Since the conversion factor is an approximation, it is common to round the result to a reasonable number of decimal places. In this case, we can round the result to 4 decimal places:

4.0823 kg

Therefore, 9 lbs is approximately equal to 4.0823 kg.