Compare 3/81 and 1/90
3/81 is greater than 1/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 90 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 90 × 9 = 810,
1/90 = 1 × 9/90 × 9 = 9/810 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/810 > 9/810 or 3/81 > 1/90
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 1/90 3/81 and 2/90 9/81 and 1/90 3/81 and 3/90 15/81 and 1/90 3/81 and 5/90 21/81 and 1/90 3/81 and 7/90