1/9 of 81 is 9.
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One ninth times one ninth is equal to one over eighty-one (1/81). This can be calculated by multiplying the numerators (1 x 1) to get 1, and the denominators (9 x 9) to get 81. Therefore, the result of one ninth times one ninth is 1/81.
1/3
Eighty-one and four hundred eighty-four thousandths in decimal notation is 81.484
One ninth plus One eighth is 17/72, or seventeen seventy-seconds
One piece of anything that has been divided into nine equal pieces is one ninth of the original. It is a little more that 11 percent of the whole, so one ninth of a dollar is about 11 cents.