Compare 15/81 and 8/12
15/81 is smaller than 8/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
15/81 = 15 × 4/81 × 4 = 60/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
8/12 = 8 × 27/12 × 27 = 216/324 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 60/324 < 216/324 or 15/81 < 8/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/81 and 8/12 15/81 and 16/12 15/81 and 8/24 45/81 and 8/12 15/81 and 24/12 15/81 and 8/36 75/81 and 8/12 15/81 and 40/12 15/81 and 8/60 15/81 and 56/12 15/81 and 8/84