Compare 18/12 and 81/63
1st number: 1 6/12, 2nd number: 1 18/63
18/12 is greater than 81/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
18/12 = 18 × 21/12 × 21 = 378/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
81/63 = 81 × 4/63 × 4 = 324/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 378/252 > 324/252 or 18/12 > 81/63
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