Compare 6/81 and 8/5, Which fraction is greater?

Compare 6/81 and 8/5

1^st number: 6/81, 2^nd number: 1 3/5

6/81 is smaller than 8/5

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 5 is 405

Next, find the equivalent fraction of both fractional numbers with denominator 405
For the 1st fraction, since 81 × 5 = 405,
6/81 = 6 × 5/81 × 5 = 30/405
Likewise, for the 2nd fraction, since 5 × 81 = 405,
8/5 = 8 × 81/5 × 81 = 648/405
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
30/405 < 648/405 or 6/81 < 8/5

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