Well let's see how many numbers can be divisible by 6 or 8, add them up, and then put it into a fraction. 6: 6, 12, 18, 24, 30, 36. 6: 8, 16, 24, 32, 40. Total: 6, 8, 12, 16, 18, 24, 30, 32, 36, 40. There are 10/40 positive numbers that can be divided by 6 or 8. Simplified, 1/4.