Compare 15/48 and 7/21
15/48 is smaller than 7/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
15/48 = 15 × 7/48 × 7 = 105/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
7/21 = 7 × 16/21 × 16 = 112/336 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 105/336 < 112/336 or 15/48 < 7/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/48 and 7/21 15/48 and 14/21 15/96 and 7/21 15/48 and 7/42 45/48 and 7/21 15/48 and 7/63 75/48 and 7/21 15/48 and 35/21 15/48 and 49/21