Compare 21/49 and 3/9
21/49 is greater than 3/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 9 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
21/49 = 21 × 9/49 × 9 = 189/441 - Likewise, for the 2nd fraction, since 9 × 49 = 441,
3/9 = 3 × 49/9 × 49 = 147/441 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 189/441 > 147/441 or 21/49 > 3/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/49 and 3/9 21/49 and 6/9 21/98 and 3/9 21/49 and 3/18 63/49 and 3/9 21/49 and 3/27 21/49 and 15/9 21/49 and 3/45 21/49 and 21/9 21/49 and 3/63