Compare 21/12 and 81/25
1st number: 1 9/12, 2nd number: 3 6/25
21/12 is smaller than 81/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
81/25 = 81 × 12/25 × 12 = 972/300 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 525/300 < 972/300 or 21/12 < 81/25
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