Compare 81/84 and 3/7
81/84 is greater than 3/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
81/84 = 81 × 1/84 × 1 = 81/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
3/7 = 3 × 12/7 × 12 = 36/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 81/84 > 36/84 or 81/84 > 3/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/84 and 6/7 81/84 and 3/14 81/84 and 9/7 81/84 and 3/21 81/84 and 15/7 81/84 and 3/35 81/84 and 21/7 81/84 and 3/49