Compare 18/7 and 7/81
1st number: 2 4/7, 2nd number: 7/81
18/7 is greater than 7/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
18/7 = 18 × 81/7 × 81 = 1458/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
7/81 = 7 × 7/81 × 7 = 49/567 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1458/567 > 49/567 or 18/7 > 7/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/7 and 7/81 18/7 and 14/81 18/14 and 7/81 54/7 and 7/81 18/7 and 21/81 18/21 and 7/81 90/7 and 7/81 18/7 and 35/81 18/35 and 7/81 18/7 and 49/81 18/49 and 7/81