To write 10 billionths in decimal form, you would start with the number 0.000000001. This is because a billionth is one divided by one billion, which is represented as 1/1,000,000,000 or 0.000000001 in decimal form.
0.000000001
0.000000001
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Write one and two hundred three thousandths as a decimal
One billionth.
It is 0.000000001
0.000000001
There is only one decimal point in the number Pi
One billionth in standard form is 1.0 × 10-9
0.000000001
One hundred-billionth.
The tenth place to the right of the decimal point.
It looks like this 0.111111111 or whatever your number
You would write it as 0.00001
one millionths in decimal = 0.000001
You would just write it as 125, but if there was a decimal, then it would be 125.__ I am a geek in math.