Write forty -five thousand eight hundred sixty -one thousandth in decimal number.

45 861

45.861

To write forty-five thousand eight hundred sixty-one thousandth in decimal form, we need to understand the place value system. In a decimal number, the digits to the right of the decimal point represent a fraction of a whole number.

To convert the given number to a decimal, we start with the whole number part, which is forty-five thousand. This can be written as 45,000.

Next, we need to convert the fractional part, which is one thousandth. To do this, we divide 1 by 1,000, which gives us 0.001.

Finally, we add the fractional part to the whole number part to get the decimal representation of the given number. Therefore, forty-five thousand eight hundred sixty-one thousandth in decimal form is 45,000 + 0.001 = 45,000.001.

So, the decimal representation of forty-five thousand eight hundred sixty-one thousandth is 45,000.001.