Compare 50/75 and 30/80
50/75 is greater than 30/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
50/75 = 50 × 16/75 × 16 = 800/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
30/80 = 30 × 15/80 × 15 = 450/1200 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 800/1200 > 450/1200 or 50/75 > 30/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/75 and 60/80 50/75 and 90/80