8/9
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Expressed as a proper fraction in its simplest form, by dividing the numerator and denominator by 9, 72/81 is equal to 8/9 or eight ninths.
8/9
754/81 = 72/3 (as a mixed number) = 23/3 (as an improper fraction)
The simplest form for 81 over 90 is 9/10
17/81 is in its simplest form.