Compare 12/8 and 80/81
1st number: 1 4/8, 2nd number: 80/81
12/8 is greater than 80/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
12/8 = 12 × 81/8 × 81 = 972/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
80/81 = 80 × 8/81 × 8 = 640/648 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 972/648 > 640/648 or 12/8 > 80/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/8 and 80/81 12/16 and 80/81 36/8 and 80/81 12/24 and 80/81 60/8 and 80/81 12/40 and 80/81 84/8 and 80/81 12/56 and 80/81