Alright, this is kind of straightfoward - 0.98 is 98/100 and is 98%. To simplify it, we see that it has an even number, so we divide by 2 and get 49/50
For the next one, we want to get it out of 100, and 25*4=100 so we multiply 9*4 to get 36 and 0.36 and 36%
13% = 0.13 and 13/100
Do you see where this is headed?