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.
One and one ninth.
It is 0.012345679 with the underlined string repeating.
-1/9 x 1/9 = -1/81
1/27
1
Two ninths.
5/54
negative one ninth
4 over 27
1/3
1/9 times 3/5 is 1/15.
One third divided by one ninth is the same as one third times nine, which is three.