To multiply fractions, you multiply the numerator by the numerator and the denominator by the denominator. -8*-1 will turn positive because there are 2 negative signs, and will become 8. 1*8 is 8.
The fraction is now 8/8, which can be simplified to 1.
Both of the fractions are negative, therefore they cancel eachother out and you know that the answer will become positive. You then have 8/1 times 1/8. You multiply straight across on top (8*1) and your answer is 8. Then you multiply across on the bottom(1*8) and again you get 8. You now have 8/8, and to reduce the fraction you divide the numerator by the denominator, which is 8 divided by 8, which will give you your answer. (1)
