Compare 3/12 and 20/28
3/12 is smaller than 20/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
3/12 = 3 × 7/12 × 7 = 21/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
20/28 = 20 × 3/28 × 3 = 60/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 21/84 < 60/84 or 3/12 < 20/28
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 20/28 3/12 and 40/28 3/24 and 20/28 3/12 and 20/56 9/12 and 20/28 3/12 and 60/28 3/36 and 20/28 3/12 and 20/84 15/12 and 20/28 3/60 and 20/28 21/12 and 20/28 3/84 and 20/28