Compare 21/15 and 63/6
1st number: 1 6/15, 2nd number: 10 3/6
21/15 is smaller than 63/6
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
21/15 = 21 × 2/15 × 2 = 42/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
63/6 = 63 × 5/6 × 5 = 315/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 42/30 < 315/30 or 21/15 < 63/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/15 and 63/6 21/30 and 63/6 21/15 and 63/12 63/15 and 63/6 21/45 and 63/6 21/15 and 63/18 21/75 and 63/6 21/15 and 63/30 21/15 and 63/42