Compare 15/54 and 42/12
1st number: 15/54, 2nd number: 3 6/12
15/54 is smaller than 42/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 54 × 2 = 108,
15/54 = 15 × 2/54 × 2 = 30/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
42/12 = 42 × 9/12 × 9 = 378/108 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/108 < 378/108 or 15/54 < 42/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/54 and 42/12 15/54 and 84/12 15/54 and 42/24 45/54 and 42/12 15/54 and 42/36 75/54 and 42/12 15/54 and 42/60 15/54 and 42/84