Compare 15/21 and 15/49
15/21 is greater than 15/49
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147
Next, find the equivalent fraction of both fractional numbers with denominator 147 - For the 1st fraction, since 21 × 7 = 147,
15/21 = 15 × 7/21 × 7 = 105/147 - Likewise, for the 2nd fraction, since 49 × 3 = 147,
15/49 = 15 × 3/49 × 3 = 45/147 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 105/147 > 45/147 or 15/21 > 15/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/21 and 15/49 15/21 and 30/49 15/42 and 15/49 15/21 and 15/98 45/21 and 15/49 15/21 and 45/49 15/63 and 15/49 75/21 and 15/49 15/21 and 75/49