Compare 45/81 and 81/28
1st number: 45/81, 2nd number: 2 25/28
45/81 is smaller than 81/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 28 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
45/81 = 45 × 28/81 × 28 = 1260/2268 - Likewise, for the 2nd fraction, since 28 × 81 = 2268,
81/28 = 81 × 81/28 × 81 = 6561/2268 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1260/2268 < 6561/2268 or 45/81 < 81/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/81 and 81/28 45/81 and 81/56 45/81 and 81/84