Compare 81/15 and 18/12
1st number: 5 6/15, 2nd number: 1 6/12
81/15 is greater than 18/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
81/15 = 81 × 4/15 × 4 = 324/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
18/12 = 18 × 5/12 × 5 = 90/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 324/60 > 90/60 or 81/15 > 18/12
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