You could mean 200.0015 if you are talking about the whole number two hundred. You could also mean 0.215 if you are talking about an amount of thousandths.
You cannot, because 8 thousandths is less than one, so there is no 'mixing' to be done. If it were 1 and 8 thousandths, then the mixed number would be 1 8/1000, or as a decimal fraction, 1.008. The decimal fraction 8 thousandths could be written 0.008, and as a fraction, 8/1000
0.0207 However, the question is ambiguous and the number could be [two hundred] and [seven ten-thousandths] = 200.0007. Unlikely, though.
The first position to the right of the decimal point measures tenths, the second position measures hundredths and the third position measures thousandths. 1 thousandth is therefore 0.001 50 thousandths is 0.050 Note : 50 thousandths is equivalent to 5 hundredths so the decimal number could then be written as 0.50. In terms of value they are the same. In terms of what the number tells you, they are obviously different.
It need not be: you could write it as 52/1000 and in that form it would be a ratioonal fraction, not a decimal fraction.
Six hundred-thousandths. Could be easily confused with 0.600: six hundred thousandths. (as in "six" "hundred-thousandths" vs "six hundred" "thousandths")
You could call that eight hundred thousandths,
We ususally stop on the thousandths but 3 hits out of 10 at bats could be considered a repeating decimal.
400.097The question is ambiguous as it could either be the answer above or0.497Actually the first answer is correct. The written out numbers after 'and' is the decimal portion and the ones before 'and' is the whole number.0.497 would just be four hundred ninety-seven thousandths
It could be any number whatsoever.
The question is ambiguous, It could be 0.300, but is more likely to be 0.00003