Compare 84/81 and 2/15
1st number: 1 3/81, 2nd number: 2/15
84/81 is greater than 2/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 15 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
84/81 = 84 × 5/81 × 5 = 420/405 - Likewise, for the 2nd fraction, since 15 × 27 = 405,
2/15 = 2 × 27/15 × 27 = 54/405 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 420/405 > 54/405 or 84/81 > 2/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/81 and 4/15 84/81 and 2/30 84/81 and 6/15 84/81 and 2/45 84/81 and 10/15 84/81 and 2/75 84/81 and 14/15