Compare 30/5 and 42/81, Which fraction is greater?

Compare 30/5 and 42/81

1^st number: 6 0/5, 2^nd number: 42/81

30/5 is greater than 42/81

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

Next, find the equivalent fraction of both fractional numbers with denominator 405
For the 1st fraction, since 5 × 81 = 405,
30/5 = 30 × 81/5 × 81 = 2430/405
Likewise, for the 2nd fraction, since 81 × 5 = 405,
42/81 = 42 × 5/81 × 5 = 210/405
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
2430/405 > 210/405 or 30/5 > 42/81

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