Compare 90/5 and 81/12
1st number: 18 0/5, 2nd number: 6 9/12
90/5 is greater than 81/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
90/5 = 90 × 12/5 × 12 = 1080/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
81/12 = 81 × 5/12 × 5 = 405/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1080/60 > 405/60 or 90/5 > 81/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10 and 81/12 90/5 and 81/24 90/15 and 81/12 90/5 and 81/36 90/25 and 81/12 90/5 and 81/60 90/35 and 81/12 90/5 and 81/84