Compare 9/15 and 28/81, Which fraction is greater?

Compare 9/15 and 28/81

9/15 is greater than 28/81

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405

Next, find the equivalent fraction of both fractional numbers with denominator 405
For the 1st fraction, since 15 × 27 = 405,
9/15 = 9 × 27/15 × 27 = 243/405
Likewise, for the 2nd fraction, since 81 × 5 = 405,
28/81 = 28 × 5/81 × 5 = 140/405
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
243/405 > 140/405 or 9/15 > 28/81

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