There are two fractions that are equal, but one of them has a product in the denominator. We need to choose 3 numbers such that the simplified fraction lead to two different numbers. Those numbers are:

Then, there are 4 more numbers: 1, 5, 7, and 8. 1/5 is lower than 3/4, and 7/8 is higher than 3/4. Then, the answer is: