Compare 21/5 and 98/21
1st number: 4 1/5, 2nd number: 4 14/21
21/5 is smaller than 98/21
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,
98/21 = 98 × 5/21 × 5 = 490/105 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 441/105 < 490/105 or 21/5 < 98/21
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 98/21 21/10 and 98/21 21/5 and 98/42 63/5 and 98/21 21/15 and 98/21 21/5 and 98/63 21/25 and 98/21 21/35 and 98/21