Compare 7/20 and 15/28
7/20 is smaller than 15/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
7/20 = 7 × 7/20 × 7 = 49/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
15/28 = 15 × 5/28 × 5 = 75/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 49/140 < 75/140 or 7/20 < 15/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20 and 15/28 7/20 and 30/28 7/40 and 15/28 7/20 and 15/56 21/20 and 15/28 7/20 and 45/28 7/60 and 15/28 7/20 and 15/84 35/20 and 15/28 7/20 and 75/28 49/20 and 15/28