Compare 21/5 and 35/21
1st number: 4 1/5, 2nd number: 1 14/21
21/5 is greater than 35/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
21/5 = 21 × 21/5 × 21 = 441/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
35/21 = 35 × 5/21 × 5 = 175/105 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 441/105 > 175/105 or 21/5 > 35/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5 and 35/21 21/5 and 70/21 21/10 and 35/21 21/5 and 35/42 63/5 and 35/21 21/15 and 35/21 21/5 and 35/63 21/25 and 35/21 21/35 and 35/21