It the most simplified form. We know it because we know that 3 is prime number so it can be divide only by 1 and by3. Dividing by 1 dont change anything, lets see if we can divide denominator by 3. In den we have 32 which is not divisible by 3. It means that its the simplest form.
If u want U can transform it into decimal form. We know that fraction its really dividing, so we can say that
====> 3:32 Now we can divide it on the paper (or using calculator) to get 3:32=0.09375 But its not simplied form, its decimal form.