Answer: 45
Step-by-step explanation:
We can label 5/9 of 81 as Numerator/Denominator of a whole number.
To solve the problem, we multiply the Numerator by the whole number and leave the Denominator as is:
(5 x 81) / 9 = 405/9 = 45
Therefore, the answer to 5/9 of 81 in its lowest form is: