Compare 6/21 and 1/15
6/21 is greater than 1/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 15 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
6/21 = 6 × 5/21 × 5 = 30/105 - Likewise, for the 2nd fraction, since 15 × 7 = 105,
1/15 = 1 × 7/15 × 7 = 7/105 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/105 > 7/105 or 6/21 > 1/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21 and 1/15 6/21 and 2/15 6/42 and 1/15 6/21 and 1/30 18/21 and 1/15 6/21 and 3/15 6/63 and 1/15 6/21 and 1/45 30/21 and 1/15 6/21 and 5/15 6/21 and 1/75 42/21 and 1/15 6/21 and 7/15