Compare 1/6 and 18/81
1/6 is smaller than 18/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 6 × 27 = 162,
1/6 = 1 × 27/6 × 27 = 27/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
18/81 = 18 × 2/81 × 2 = 36/162 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 27/162 < 36/162 or 1/6 < 18/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/6 and 18/81 1/6 and 36/81 1/12 and 18/81 3/6 and 18/81 1/6 and 54/81 1/18 and 18/81 5/6 and 18/81 1/6 and 90/81 1/30 and 18/81 7/6 and 18/81 1/42 and 18/81