Compare 28/21 and 49/27
1st number: 1 7/21, 2nd number: 1 22/27
28/21 is smaller than 49/27
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 21 × 9 = 189,
28/21 = 28 × 9/21 × 9 = 252/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
49/27 = 49 × 7/27 × 7 = 343/189 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 252/189 < 343/189 or 28/21 < 49/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/21 and 49/27 28/21 and 98/27 28/42 and 49/27 28/21 and 49/54 84/21 and 49/27 28/63 and 49/27 28/21 and 49/81