13 is an integer and so the answer is 13 months, or k*13/k moths where k is any non-zero integer. There is nothing in the question requiring the measurement unit to be changed and, in any case, the answer would depend on whether the unspecified unit was a week or a year (or something else).
Chat with our AI personalities
It is: 0.013 = 13/1000 as a fraction
130% = 1.3 = 13/10 in fraction
3.25 = 13/4 as a fraction in its simplest form
0.65 as a fraction is 65/100. In simplest terms it is 13/20.
13/3