Compare 21/20 and 56/7
1st number: 1 1/20, 2nd number: 8 0/7
21/20 is smaller than 56/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
21/20 = 21 × 7/20 × 7 = 147/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
56/7 = 56 × 20/7 × 20 = 1120/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/140 < 1120/140 or 21/20 < 56/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/20 and 56/7 21/40 and 56/7 21/20 and 56/14 63/20 and 56/7 21/60 and 56/7 21/20 and 56/21 21/20 and 56/35 21/20 and 56/49