Compare 6/81 and 2/5
6/81 is smaller than 2/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 5 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
6/81 = 6 × 5/81 × 5 = 30/405 - Likewise, for the 2nd fraction, since 5 × 81 = 405,
2/5 = 2 × 81/5 × 81 = 162/405 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/405 < 162/405 or 6/81 < 2/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/81 and 2/5 6/81 and 4/5 6/81 and 2/10 18/81 and 2/5 6/81 and 6/5 6/81 and 2/15 30/81 and 2/5 6/81 and 10/5 6/81 and 2/25 42/81 and 2/5 6/81 and 14/5 6/81 and 2/35