Compare 81/28 and 30/18
1st number: 2 25/28, 2nd number: 1 12/18
81/28 is greater than 30/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
81/28 = 81 × 9/28 × 9 = 729/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
30/18 = 30 × 14/18 × 14 = 420/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 729/252 > 420/252 or 81/28 > 30/18
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