Compare 81/40 and 12/20
1st number: 2 1/40, 2nd number: 12/20
81/40 is greater than 12/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
81/40 = 81 × 1/40 × 1 = 81/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
12/20 = 12 × 2/20 × 2 = 24/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 81/40 > 24/40 or 81/40 > 12/20
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