Compare 54/20 and 21/7
1st number: 2 14/20, 2nd number: 3 0/7
54/20 is smaller than 21/7
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,
54/20 = 54 × 7/20 × 7 = 378/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
21/7 = 21 × 20/7 × 20 = 420/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 378/140 < 420/140 or 54/20 < 21/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20 and 42/7 54/40 and 21/7 54/20 and 21/14 54/20 and 63/7 54/60 and 21/7 54/20 and 21/35 54/20 and 21/49