8 kittens, and 2 are white. To find out the ones that are not white, take the total number of cats minus the number of white cats. 8 - 2 = 6
There are 6 cats that are not white.
The fraction is 6/8. For this fraction, divide the numerator and denominator by 2, because they are both divisible by 2.
That should get you 3/4.
3/4 of the cats are not white.