Compare 28/18 and 56/21
1st number: 1 10/18, 2nd number: 2 14/21
28/18 is smaller than 56/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
28/18 = 28 × 7/18 × 7 = 196/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
56/21 = 56 × 6/21 × 6 = 336/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 196/126 < 336/126 or 28/18 < 56/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18 and 56/21 28/36 and 56/21 28/18 and 56/42 84/18 and 56/21 28/54 and 56/21 28/18 and 56/63 28/90 and 56/21