Compare 4/84 and 21/9
1st number: 4/84, 2nd number: 2 3/9
4/84 is smaller than 21/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
4/84 = 4 × 3/84 × 3 = 12/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
21/9 = 21 × 28/9 × 28 = 588/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 12/252 < 588/252 or 4/84 < 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84 and 21/9 4/84 and 42/9 4/84 and 21/18 12/84 and 21/9 4/84 and 63/9 4/84 and 21/27 20/84 and 21/9 4/84 and 21/45 28/84 and 21/9 4/84 and 21/63