Compare 18/49 and 21/9, Which fraction is greater?

Compare 18/49 and 21/9

1^st number: 18/49, 2^nd number: 2 3/9

18/49 is smaller than 21/9

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 9 is 441

Next, find the equivalent fraction of both fractional numbers with denominator 441
For the 1st fraction, since 49 × 9 = 441,
18/49 = 18 × 9/49 × 9 = 162/441
Likewise, for the 2nd fraction, since 9 × 49 = 441,
21/9 = 21 × 49/9 × 49 = 1029/441
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
162/441 < 1029/441 or 18/49 < 21/9

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