Compare 21/72 and 63/14
1st number: 21/72, 2nd number: 4 7/14
21/72 is smaller than 63/14
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
21/72 = 21 × 7/72 × 7 = 147/504 - Likewise, for the 2nd fraction, since 14 × 36 = 504,
63/14 = 63 × 36/14 × 36 = 2268/504 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/504 < 2268/504 or 21/72 < 63/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/72 and 63/14 21/72 and 63/28 63/72 and 63/14 21/72 and 63/42 21/72 and 63/70 21/72 and 63/98