All you have to do is put 14 over 120 and divide. So 14/120 will become 0.11666666666 in decimal form. To round to the nearest thousandth, just count 3 places from the decimal point and look at the number to the right. If it is higher than 5, add one the 3rd number from the decimal, but if it is not, then just keep it the same. So, in this case it would be 0.117