Compare 81/24 and 12/20
1st number: 3 9/24, 2nd number: 12/20
81/24 is greater than 12/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 20 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
81/24 = 81 × 5/24 × 5 = 405/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
12/20 = 12 × 6/20 × 6 = 72/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 405/120 > 72/120 or 81/24 > 12/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/24 and 24/20 81/48 and 12/20 81/24 and 12/40 81/24 and 36/20 81/72 and 12/20 81/24 and 12/60 81/24 and 60/20 81/24 and 84/20