Compare 54/15 and 81/28
1st number: 3 9/15, 2nd number: 2 25/28
54/15 is greater than 81/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
54/15 = 54 × 28/15 × 28 = 1512/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
81/28 = 81 × 15/28 × 15 = 1215/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1512/420 > 1215/420 or 54/15 > 81/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30 and 81/28 54/15 and 81/56 54/45 and 81/28 54/15 and 81/84 54/75 and 81/28