Answer :

To write the comparison of 8 pounds to 10 pounds as a ratio in the simplest form using a colon, follow these steps:

1. Identify the two quantities: The two quantities given are 8 pounds and 10 pounds.

2. Find the greatest common divisor (GCD) of the two numbers: The greatest common divisor of 8 and 10 is 2.

3. Simplify each quantity by dividing by the GCD:
- Divide 8 pounds by 2, which gives us 4.
- Divide 10 pounds by 2, which gives us 5.

4. Write the simplified quantities as a ratio:
- The simplified form of 8 pounds to 10 pounds is 4 to 5.

5. Express the ratio using a colon:
- The correct representation of the simplified ratio is 4:5.

Therefore, the ratio of 8 pounds to 10 pounds in the simplest form is [tex]\( \mathbf{4:5} \)[/tex].