Compare 25/28 and 21/20
1st number: 25/28, 2nd number: 1 1/20
25/28 is smaller than 21/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
25/28 = 25 × 5/28 × 5 = 125/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
21/20 = 21 × 7/20 × 7 = 147/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 125/140 < 147/140 or 25/28 < 21/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28 and 21/20 25/28 and 42/20 25/56 and 21/20 25/28 and 21/40 75/28 and 21/20 25/28 and 63/20 25/84 and 21/20 25/28 and 21/60