Compare 20/12 and 40/30
1st number: 1 8/12, 2nd number: 1 10/30
20/12 is greater than 40/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
20/12 = 20 × 5/12 × 5 = 100/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
40/30 = 40 × 2/30 × 2 = 80/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 100/60 > 80/60 or 20/12 > 40/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12 and 40/30 20/12 and 80/30 20/24 and 40/30 20/12 and 40/60 60/12 and 40/30 20/36 and 40/30 20/12 and 40/90 20/60 and 40/30 20/84 and 40/30