Compare 1/81 and 30/84
1/81 is smaller than 30/84
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 84 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
1/81 = 1 × 28/81 × 28 = 28/2268 - Likewise, for the 2nd fraction, since 84 × 27 = 2268,
30/84 = 30 × 27/84 × 27 = 810/2268 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 28/2268 < 810/2268 or 1/81 < 30/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/81 and 30/84 1/81 and 60/84 3/81 and 30/84 1/81 and 90/84 5/81 and 30/84 7/81 and 30/84