Compare 21/30 and 9/24
21/30 is greater than 9/24
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
21/30 = 21 × 4/30 × 4 = 84/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
9/24 = 9 × 5/24 × 5 = 45/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 84/120 > 45/120 or 21/30 > 9/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30 and 9/24 21/30 and 18/24 21/60 and 9/24 21/30 and 9/48 63/30 and 9/24 21/30 and 27/24 21/90 and 9/24 21/30 and 9/72 21/30 and 45/24 21/30 and 63/24