Compare 81/15 and 28/18
1st number: 5 6/15, 2nd number: 1 10/18
81/15 is greater than 28/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
81/15 = 81 × 6/15 × 6 = 486/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
28/18 = 28 × 5/18 × 5 = 140/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 486/90 > 140/90 or 81/15 > 28/18
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