Compare 3/12 and 45/54
3/12 is smaller than 45/54
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
3/12 = 3 × 9/12 × 9 = 27/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
45/54 = 45 × 2/54 × 2 = 90/108 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 27/108 < 90/108 or 3/12 < 45/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12 and 45/54 3/12 and 90/54 3/24 and 45/54 9/12 and 45/54 3/36 and 45/54 15/12 and 45/54 3/60 and 45/54 21/12 and 45/54 3/84 and 45/54