Compare 4/14 and 15/21
4/14 is smaller than 15/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
4/14 = 4 × 3/14 × 3 = 12/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
15/21 = 15 × 2/21 × 2 = 30/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 12/42 < 30/42 or 4/14 < 15/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/14 and 15/21 4/14 and 30/21 4/28 and 15/21 4/14 and 15/42 12/14 and 15/21 4/14 and 45/21 4/42 and 15/21 4/14 and 15/63 20/14 and 15/21 4/14 and 75/21 4/70 and 15/21 28/14 and 15/21 4/98 and 15/21