Compare 3/15 and 21/49
3/15 is smaller than 21/49
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735
Next, find the equivalent fraction of both fractional numbers with denominator 735 - For the 1st fraction, since 15 × 49 = 735,
3/15 = 3 × 49/15 × 49 = 147/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
21/49 = 21 × 15/49 × 15 = 315/735 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/735 < 315/735 or 3/15 < 21/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15 and 21/49 3/15 and 42/49 3/30 and 21/49 3/15 and 21/98 9/15 and 21/49 3/15 and 63/49 3/45 and 21/49 3/75 and 21/49 21/15 and 21/49