Answer:
You multiply it by 1000. If you're talking about converting decimals to fractions.
Step-by-step explanation:
2.314
2 is the whole number, you leave that alone for right now.
0.314 is the decimal part.
Rewrite the decimal with a denominator of 1.

Because this decimal goes all way to the thousandths place, you multiply the top and the bottom by 1,000.
×1000= 
Next you simplify divide the top and bottom by the GCF (greatest common factor) in this case 2.
÷2
=