Compare 30/72 and 80/7
1st number: 30/72, 2nd number: 11 3/7
30/72 is smaller than 80/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
30/72 = 30 × 7/72 × 7 = 210/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
80/7 = 80 × 72/7 × 72 = 5760/504 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/504 < 5760/504 or 30/72 < 80/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72 and 80/7 30/72 and 80/14 90/72 and 80/7 30/72 and 80/21 30/72 and 80/35 30/72 and 80/49