Question

Reduce the ratio to its lowest form 18:81

Answer 1

1:4.5 or 2:9 if you want it a whole number.

Explanation:

81/18 = 4.5If your trying to get it to a whole number the answer would be 2:9 because 18/9 = 2 and 81/9 = 9 so 1:4.5 or 2:9.