To express the number 90 as a fraction in its simplest form, we can create a fraction where 90 is the numerator. A straightforward way to do this is to place 90 over 1. Therefore, we can initially write:
90 = 90/1
Now, we need to simplify this fraction if possible. The fraction 90/1 is already in its simplest form because there are no common factors other than 1 between the numerator (90) and the denominator (1).
Thus, we conclude:
90 as a fraction in simplest form is: 90/1
In summary, while 90 can be represented as 90/1, if you are looking for a fraction that more closely resembles a typical fraction format, it simply remains 90/1. There’s no further simplification possible, and this representation clearly and straightforwardly conveys the value of 90.