Convert the Decimal Fraction: Express 51/1000 in Decimal Form

To solve this problem, we'll follow these steps:

• Understand the given fraction $\frac{51}{1000}$ and its relation to decimals.
• Convert the fraction to a decimal.
• Compare and verify with the provided answer choices.

Now, let's work through each step:
The denominator of our fraction is 1000, which tells us it's in the thousandths place in decimal form.
Therefore, we need to place the number 51 in the thousandths place. Doing so gives us the decimal 0.051.
Now let's verify with choices: Among the options, 0.051 perfectly matches our calculated result.

Therefore, the solution to the problem is $0.051$.