What is the written form of 21.035?

The written form of 21.035 is "twenty-one and thirty-five thousandths." In this decimal number, the "2" represents 20 whole units, the "1" represents 1 whole unit, the "0" represents zero tenths, the "3" represents three hundredths, and the "5" represents five thousandths. The decimal point separates the whole number part from the fractional part, with each digit's place value indicating its position relative to the decimal point.