Compare 81/4 and 45/12
1st number: 20 1/4, 2nd number: 3 9/12
81/4 is greater than 45/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
81/4 = 81 × 3/4 × 3 = 243/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
45/12 = 45 × 1/12 × 1 = 45/12 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 243/12 > 45/12 or 81/4 > 45/12
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