Compare 4/21 and 2/6
4/21 is smaller than 2/6
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
4/21 = 4 × 2/21 × 2 = 8/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
2/6 = 2 × 7/6 × 7 = 14/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 8/42 < 14/42 or 4/21 < 2/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21 and 2/6 4/21 and 4/6 4/42 and 2/6 4/21 and 2/12 12/21 and 2/6 4/63 and 2/6 4/21 and 2/18 20/21 and 2/6 4/21 and 10/6 4/21 and 2/30 28/21 and 2/6 4/21 and 14/6 4/21 and 2/42