Compare 12/81 and 2/7
12/81 is smaller than 2/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 7 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
12/81 = 12 × 7/81 × 7 = 84/567 - Likewise, for the 2nd fraction, since 7 × 81 = 567,
2/7 = 2 × 81/7 × 81 = 162/567 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 84/567 < 162/567 or 12/81 < 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/81 and 2/7 12/81 and 4/7 12/81 and 2/14 36/81 and 2/7 12/81 and 6/7 12/81 and 2/21 60/81 and 2/7 12/81 and 10/7 12/81 and 2/35 84/81 and 2/7 12/81 and 14/7 12/81 and 2/49