Compare 81/30 and 7/9
1st number: 2 21/30, 2nd number: 7/9
81/30 is greater than 7/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
81/30 = 81 × 3/30 × 3 = 243/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
7/9 = 7 × 10/9 × 10 = 70/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 243/90 > 70/90 or 81/30 > 7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/30 and 14/9 81/60 and 7/9 81/30 and 7/18 81/30 and 21/9 81/90 and 7/9 81/30 and 7/27 81/30 and 35/9 81/30 and 7/45 81/30 and 49/9 81/30 and 7/63