Compare 28/36 and 2/21
28/36 is greater than 2/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
28/36 = 28 × 7/36 × 7 = 196/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
2/21 = 2 × 12/21 × 12 = 24/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 196/252 > 24/252 or 28/36 > 2/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/36 and 2/21 28/36 and 4/21 28/72 and 2/21 28/36 and 2/42 84/36 and 2/21 28/36 and 6/21 28/36 and 2/63 28/36 and 10/21 28/36 and 14/21