Compare 3/81 and 28/30
3/81 is smaller than 28/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 30 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
3/81 = 3 × 10/81 × 10 = 30/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
28/30 = 28 × 27/30 × 27 = 756/810 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/810 < 756/810 or 3/81 < 28/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/81 and 28/30 3/81 and 56/30 3/81 and 28/60 9/81 and 28/30 3/81 and 84/30 3/81 and 28/90 15/81 and 28/30 21/81 and 28/30