In order to make the fraction five over fourteen into a decimal, we need to simply divide both five and fourteen and once we do we get 0.357143. Okay now that we have that, now we have to round to the nearest thousandth, which is 3 decimals, so from left to right, if we count from zero to four, and keep those numbers, that's our answer.
Answer: 0.357 is the decimal number of 5/14 rounded to the nearest thousandth.