Compare 81/12 and 21/4
1st number: 6 9/12, 2nd number: 5 1/4
81/12 is greater than 21/4
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
81/12 = 81 × 1/12 × 1 = 81/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
21/4 = 21 × 3/4 × 3 = 63/12 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 81/12 > 63/12 or 81/12 > 21/4
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