Compare 35/80 and 21/9
1st number: 35/80, 2nd number: 2 3/9
35/80 is smaller than 21/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
35/80 = 35 × 9/80 × 9 = 315/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
21/9 = 21 × 80/9 × 80 = 1680/720 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 315/720 < 1680/720 or 35/80 < 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80 and 21/9 35/80 and 42/9 35/80 and 21/18 35/80 and 63/9 35/80 and 21/27 35/80 and 21/45 35/80 and 21/63