Compare 16/21 and 3/9
16/21 is greater than 3/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
16/21 = 16 × 3/21 × 3 = 48/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
3/9 = 3 × 7/9 × 7 = 21/63 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 48/63 > 21/63 or 16/21 > 3/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/21 and 3/9 16/21 and 6/9 16/42 and 3/9 16/21 and 3/18 48/21 and 3/9 16/63 and 3/9 16/21 and 3/27 80/21 and 3/9 16/21 and 15/9 16/21 and 3/45 16/21 and 21/9 16/21 and 3/63