Compare 7/10 and 21/28
7/10 is smaller than 21/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
7/10 = 7 × 14/10 × 14 = 98/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
21/28 = 21 × 5/28 × 5 = 105/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 98/140 < 105/140 or 7/10 < 21/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10 and 21/28 7/10 and 42/28 7/20 and 21/28 7/10 and 21/56 21/10 and 21/28 7/10 and 63/28 7/30 and 21/28 7/10 and 21/84 35/10 and 21/28 7/50 and 21/28 49/10 and 21/28 7/70 and 21/28