Compare 2/21 and 6/12
2/21 is smaller than 6/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
2/21 = 2 × 4/21 × 4 = 8/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
6/12 = 6 × 7/12 × 7 = 42/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 8/84 < 42/84 or 2/21 < 6/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21 and 6/12 2/42 and 6/12 2/21 and 6/24 6/21 and 6/12 2/21 and 18/12 2/63 and 6/12 2/21 and 6/36 10/21 and 6/12 2/21 and 30/12 2/21 and 6/60 14/21 and 6/12 2/21 and 42/12 2/21 and 6/84