Compare 7/90 and 6/81
7/90 is greater than 6/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 90 × 9 = 810,
7/90 = 7 × 9/90 × 9 = 63/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
6/81 = 6 × 10/81 × 10 = 60/810 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 63/810 > 60/810 or 7/90 > 6/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90 and 6/81 7/90 and 12/81 21/90 and 6/81 7/90 and 18/81 35/90 and 6/81 7/90 and 30/81 49/90 and 6/81 7/90 and 42/81