Question

how to write 0.12345679

Answer 1

You have to round it up.
To the most it will be3 decimal places.
So 0.123 and then the next number is 4 so it will stay as 0.123. That will be the answer but it all depends on how many decimal places you want it to be.
Hope this helps.
Xx

Answer 2

If you want to round it to the nearest hundreds it is 0.12
If tenth, 0.1
If thousands, 0.123 and so on.