Compare 30/80 and 8/7
1st number: 30/80, 2nd number: 1 1/7
30/80 is smaller than 8/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 7 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
30/80 = 30 × 7/80 × 7 = 210/560 - Likewise, for the 2nd fraction, since 7 × 80 = 560,
8/7 = 8 × 80/7 × 80 = 640/560 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/560 < 640/560 or 30/80 < 8/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/80 and 8/7 30/80 and 16/7 30/80 and 8/14 90/80 and 8/7 30/80 and 24/7 30/80 and 8/21 30/80 and 40/7 30/80 and 8/35 30/80 and 56/7 30/80 and 8/49