Compare 18/21 and 5/14
18/21 is greater than 5/14
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
18/21 = 18 × 2/21 × 2 = 36/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
5/14 = 5 × 3/14 × 3 = 15/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 36/42 > 15/42 or 18/21 > 5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/21 and 5/14 18/21 and 10/14 18/42 and 5/14 18/21 and 5/28 54/21 and 5/14 18/21 and 15/14 18/63 and 5/14 18/21 and 5/42 90/21 and 5/14 18/21 and 25/14 18/21 and 5/70 18/21 and 35/14 18/21 and 5/98