Compare 15/36 and 21/9
1st number: 15/36, 2nd number: 2 3/9
15/36 is smaller than 21/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
15/36 = 15 × 1/36 × 1 = 15/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
21/9 = 21 × 4/9 × 4 = 84/36 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/36 < 84/36 or 15/36 < 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/36 and 21/9 15/36 and 42/9 15/72 and 21/9 15/36 and 21/18 45/36 and 21/9 15/36 and 63/9 15/36 and 21/27 75/36 and 21/9 15/36 and 21/45 15/36 and 21/63