Compare 6/15 and 21/25
6/15 is smaller than 21/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 25 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
6/15 = 6 × 5/15 × 5 = 30/75 - Likewise, for the 2nd fraction, since 25 × 3 = 75,
21/25 = 21 × 3/25 × 3 = 63/75 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/75 < 63/75 or 6/15 < 21/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15 and 21/25 6/15 and 42/25 6/30 and 21/25 6/15 and 21/50 18/15 and 21/25 6/15 and 63/25 6/45 and 21/25 6/15 and 21/75 30/15 and 21/25 6/75 and 21/25 42/15 and 21/25