Compare 27/18 and 1/21, Which fraction is greater?

Compare 27/18 and 1/21

1^st number: 1 9/18, 2^nd number: 1/21

27/18 is greater than 1/21

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
27/18 = 27 × 7/18 × 7 = 189/126
Likewise, for the 2nd fraction, since 21 × 6 = 126,
1/21 = 1 × 6/21 × 6 = 6/126
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
189/126 > 6/126 or 27/18 > 1/21

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