Compare 28/21 and 2/72, Which fraction is greater?

Compare 28/21 and 2/72

1^st number: 1 7/21, 2^nd number: 2/72

28/21 is greater than 2/72

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 21 × 24 = 504,
28/21 = 28 × 24/21 × 24 = 672/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
2/72 = 2 × 7/72 × 7 = 14/504
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
672/504 > 14/504 or 28/21 > 2/72

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