Compare 15/21 and 24/5
1st number: 15/21, 2nd number: 4 4/5
15/21 is smaller than 24/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
15/21 = 15 × 5/21 × 5 = 75/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
24/5 = 24 × 21/5 × 21 = 504/105 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/105 < 504/105 or 15/21 < 24/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/21 and 24/5 15/21 and 48/5 15/42 and 24/5 15/21 and 24/10 45/21 and 24/5 15/21 and 72/5 15/63 and 24/5 15/21 and 24/15 75/21 and 24/5 15/21 and 24/25 15/21 and 24/35