Final answer:
To divide 16 ÷ 0.4, you can use decimal division. Multiply both the dividend and divisor by 10 to make the divisor a whole number. Divide the new dividend by the new divisor to get the answer which is 40.
Step-by-step explanation:
To divide 16 ÷ 0.4 step by step, you can use decimal division.
- Write down 16.0 as the dividend and 0.4 as the divisor.
- Multiply both the dividend and divisor by 10 to make the divisor a whole number. This gives you 160 divided by 4.
- Divide 160 by 4 to get the answer which is 40.
Therefore, the correct answer is 40 (b).
Learn more about Decimal division