Which preposition to use with twentieths

of Occurrences 77%

Crossing the treeless plains of the Sacramento and San Joaquin from the west and reaching the Sierra foot-hills, you enter the lower fringe of the forest, composed of small oaks and pines, growing so far apart that not one twentieth of the surface of the ground is in shade at clear noonday.

to Occurrences 3%

The first of the milk-teeth is generally cut about the sixth or seventh month, and the last of the set at various periods from the twentieth to the thirtieth months.

above Occurrences 1%

So he wrote them a diplomatic letter, and the result was that, beside near a hundred furnished earlier, there came to us at Cumberland on the twentieth above eighty wagons, each with four horses, and the general declared Mr. Franklin the only honest man he had met in America.

as Occurrences 1%

"If in the process of cramming the fowls lose their appetite from too much food, the ration should be reduced daily during the last ten days in the same proportion as it was increased during the first ten days, so that the ration will be the same on the twentieth as on the first day.

for Occurrences 1%

If we deduct from the remainder three-twentieths for those below eighteen, those above forty-five, and those exempted by law or infirmity, one-tenth alone will remain.

Which preposition to use with  twentieths