How do you write six hundred and eight thousandths in a decimal?

To write six hundred and eight thousandths in a decimal form, you would write it as 0.608. This is because the decimal point separates the whole number part (0) from the fractional part (608 thousandths). The digit 6 is in the tenths place, the digit 0 is in the hundredths place, and the digit 8 is in the thousandths place.