Compare 25/21 and 25/18
1st number: 1 4/21, 2nd number: 1 7/18
25/21 is smaller than 25/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
25/21 = 25 × 6/21 × 6 = 150/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
25/18 = 25 × 7/18 × 7 = 175/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 150/126 < 175/126 or 25/21 < 25/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21 and 25/18 25/21 and 50/18 25/42 and 25/18 25/21 and 25/36 75/21 and 25/18 25/21 and 75/18 25/63 and 25/18 25/21 and 25/54 25/21 and 25/90