Compare 80/30 and 15/50
1st number: 2 20/30, 2nd number: 15/50
80/30 is greater than 15/50
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
80/30 = 80 × 5/30 × 5 = 400/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
15/50 = 15 × 3/50 × 3 = 45/150 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 400/150 > 45/150 or 80/30 > 15/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30 and 30/50 80/60 and 15/50 80/30 and 45/50 80/90 and 15/50 80/30 and 75/50