0 one of forty equal parts. -- một phần bốn mươi
1 (also adjective) the last of forty (people, things etc); the next after the thirty-ninth. -- thứ bốn mươi
There was discussion about the fortieths.
Thirty-nine-fortieths have no voice at all.
Obviously, we would have preferred fortieths.
If the pension fund is so much in surplus, then conversion to fortieths, or at least to fiftieths, should be possible.
There are, therefore, many individual cases in which one can argue strongly that fortieths would be more appropriate than sixtieths.
The opportunity to buy extra years has been a great help, but we must work towards a fraction of fortieths rather than sixtieths.
Their pension entitlement is on the basis of fortieths.
I think fortieths would produce a period of about 28 years.