Compare 18/20 and 8/12
18/20 is greater than 8/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
8/12 = 8 × 5/12 × 5 = 40/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 54/60 > 40/60 or 18/20 > 8/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/20 and 8/12 18/20 and 16/12 18/40 and 8/12 18/20 and 8/24 54/20 and 8/12 18/20 and 24/12 18/60 and 8/12 18/20 and 8/36 90/20 and 8/12 18/20 and 40/12 18/20 and 8/60 18/20 and 56/12 18/20 and 8/84