Let's see -
First, take a close look at the fraction's numerator and denominator. In this case, the numerator is 8 and the denominator is 9.

Then, ask yourself, "What number goes into 8 and 9 evenly?"
Now, while you think about reducing these numbers, you find out that
is already in it's simplest form.
Of course, you could say 1 goes into both numbers evenly, but it doesn't change it.
So, therefore,
is already simplified.
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