Compare 25/20 and 15/81, Which fraction is greater?

Compare 25/20 and 15/81

1^st number: 1 5/20, 2^nd number: 15/81

25/20 is greater than 15/81

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 81 is 1620

Next, find the equivalent fraction of both fractional numbers with denominator 1620
For the 1st fraction, since 20 × 81 = 1620,
25/20 = 25 × 81/20 × 81 = 2025/1620
Likewise, for the 2nd fraction, since 81 × 20 = 1620,
15/81 = 15 × 20/81 × 20 = 300/1620
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
2025/1620 > 300/1620 or 25/20 > 15/81

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