Compare 3/9 and 21/25
3/9 is smaller than 21/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 9 × 25 = 225,
3/9 = 3 × 25/9 × 25 = 75/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
21/25 = 21 × 9/25 × 9 = 189/225 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/225 < 189/225 or 3/9 < 21/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9 and 21/25 3/9 and 42/25 3/18 and 21/25 3/9 and 21/50 3/9 and 63/25 3/27 and 21/25 3/9 and 21/75 15/9 and 21/25 3/45 and 21/25 21/9 and 21/25 3/63 and 21/25