Compare 15/30 and 20/8
1st number: 15/30, 2nd number: 2 4/8
15/30 is smaller than 20/8
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
15/30 = 15 × 4/30 × 4 = 60/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
20/8 = 20 × 15/8 × 15 = 300/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 60/120 < 300/120 or 15/30 < 20/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30 and 40/8 15/60 and 20/8 15/30 and 20/16 45/30 and 20/8 15/30 and 60/8 15/90 and 20/8 15/30 and 20/24 75/30 and 20/8 15/30 and 20/40 15/30 and 20/56