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 99 lbs to kg, we will set up the equation as follows:

99 lbs * (0.45359237 kg/1 lb)

Step 3: Cancel out the units

In the equation, the unit “lbs” is present in both the numerator and denominator. This allows us to cancel out the unit and perform the calculation.

Step 4: Perform the calculation

Multiply 99 by the conversion factor:

99 * 0.45359237 = 44.90597163

Step 5: Round the answer (if necessary)

Since weight is often rounded to a certain number of decimal places, you can round the answer to an appropriate number of decimal places. In this case, let’s round to two decimal places.

The final answer is 44.91 kg.

Therefore, 99 lbs is approximately equal to 44.91 kg.