28 grams equals how many kilograms?

• A. 0.28 kg
• B. 2.8 kg
• C. 280 kg
• D. 0.028 kg

Answer: (D)

Verified step by step guidance

1. Understand the relationship between grams and kilograms: 1 kilogram (kg) equals 1000 grams (g).
2. Set up the conversion factor to convert grams to kilograms: multiply the number of grams by \( \frac{1\ \text{kg}}{1000\ \text{g}} \).
3. Write the conversion expression for 28 grams: \( 28\ \text{g} \times \frac{1\ \text{kg}}{1000\ \text{g}} \).
4. Perform the multiplication and division to convert grams to kilograms, keeping track of units to ensure grams cancel out.
5. Express the final answer in kilograms, which will be a decimal value less than 1 since 28 grams is less than 1 kilogram.