Compare 21/4 and 18/27
1st number: 5 1/4, 2nd number: 18/27
21/4 is greater than 18/27
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 4 × 27 = 108,
21/4 = 21 × 27/4 × 27 = 567/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
18/27 = 18 × 4/27 × 4 = 72/108 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 567/108 > 72/108 or 21/4 > 18/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4 and 18/27 21/4 and 36/27 21/8 and 18/27 21/4 and 18/54 63/4 and 18/27 21/4 and 54/27 21/12 and 18/27 21/4 and 18/81 21/4 and 90/27 21/20 and 18/27 21/28 and 18/27