Compare 20/30 and 8/15
20/30 is greater than 8/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
20/30 = 20 × 1/30 × 1 = 20/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
8/15 = 8 × 2/15 × 2 = 16/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 20/30 > 16/30 or 20/30 > 8/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30 and 8/15 20/30 and 16/15 20/60 and 8/15 20/30 and 8/30 60/30 and 8/15 20/30 and 24/15 20/90 and 8/15 20/30 and 8/45 20/30 and 40/15 20/30 and 8/75 20/30 and 56/15