Question 890936
8^(-5)/8^(-3) = 1/8^5 divided by 1/8^3

1/8^5 divided by 1/8^3 = 1/8^5 times 8^3/1 = 8^3/8^5

8^3/8^5 = 8^(3-5) = 8^(-2)

8^(-2) = 1/8^2


Answer: 1/64