Compare 21/10 and 28/27
1st number: 2 1/10, 2nd number: 1 1/27
21/10 is greater than 28/27
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
21/10 = 21 × 27/10 × 27 = 567/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
28/27 = 28 × 10/27 × 10 = 280/270 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 567/270 > 280/270 or 21/10 > 28/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10 and 28/27 21/10 and 56/27 21/20 and 28/27 21/10 and 28/54 63/10 and 28/27 21/10 and 84/27 21/30 and 28/27 21/10 and 28/81 21/50 and 28/27 21/70 and 28/27