Compare 1/5 and 8/81
1/5 is greater than 8/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
1/5 = 1 × 81/5 × 81 = 81/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
8/81 = 8 × 5/81 × 5 = 40/405 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 81/405 > 40/405 or 1/5 > 8/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/5 and 8/81 1/5 and 16/81 1/10 and 8/81 3/5 and 8/81 1/5 and 24/81 1/15 and 8/81 1/5 and 40/81 1/25 and 8/81 7/5 and 8/81 1/5 and 56/81 1/35 and 8/81