Compare 45/27 and 81/28
1st number: 1 18/27, 2nd number: 2 25/28
45/27 is smaller than 81/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
45/27 = 45 × 28/27 × 28 = 1260/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
81/28 = 81 × 27/28 × 27 = 2187/756 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1260/756 < 2187/756 or 45/27 < 81/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27 and 81/28 45/54 and 81/28 45/27 and 81/56 45/81 and 81/28 45/27 and 81/84