Compare 20/3 and 12/81
1st number: 6 2/3, 2nd number: 12/81
20/3 is greater than 12/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 3 × 27 = 81,
20/3 = 20 × 27/3 × 27 = 540/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
12/81 = 12 × 1/81 × 1 = 12/81 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 540/81 > 12/81 or 20/3 > 12/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/3 and 12/81 20/3 and 24/81 20/6 and 12/81 60/3 and 12/81 20/3 and 36/81 20/9 and 12/81 20/3 and 60/81 20/15 and 12/81 20/3 and 84/81 20/21 and 12/81