Compare 30/98 and 21/27, Which fraction is greater?

Compare 30/98 and 21/27

30/98 is smaller than 21/27

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 27 is 2646

Next, find the equivalent fraction of both fractional numbers with denominator 2646
For the 1st fraction, since 98 × 27 = 2646,
30/98 = 30 × 27/98 × 27 = 810/2646
Likewise, for the 2nd fraction, since 27 × 98 = 2646,
21/27 = 21 × 98/27 × 98 = 2058/2646
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
810/2646 < 2058/2646 or 30/98 < 21/27

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