Compare 21/20 and 18/14
1st number: 1 1/20, 2nd number: 1 4/14
21/20 is smaller than 18/14
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 14 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 14 × 10 = 140,
18/14 = 18 × 10/14 × 10 = 180/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/140 < 180/140 or 21/20 < 18/14
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 18/14 21/20 and 36/14 21/40 and 18/14 21/20 and 18/28 63/20 and 18/14 21/20 and 54/14 21/60 and 18/14 21/20 and 18/42 21/20 and 90/14 21/20 and 18/70 21/20 and 18/98