Compare 7/81 and 8/9
7/81 is smaller than 8/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 9 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
7/81 = 7 × 1/81 × 1 = 7/81 - Likewise, for the 2nd fraction, since 9 × 9 = 81,
8/9 = 8 × 9/9 × 9 = 72/81 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 7/81 < 72/81 or 7/81 < 8/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/81 and 8/9 7/81 and 16/9 7/81 and 8/18 21/81 and 8/9 7/81 and 24/9 7/81 and 8/27 35/81 and 8/9 7/81 and 40/9 7/81 and 8/45 49/81 and 8/9 7/81 and 56/9 7/81 and 8/63