Compare 21/49 and 5/80
21/49 is greater than 5/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 49 × 80 = 3920,
21/49 = 21 × 80/49 × 80 = 1680/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
5/80 = 5 × 49/80 × 49 = 245/3920 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1680/3920 > 245/3920 or 21/49 > 5/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/49 and 5/80 21/49 and 10/80 21/98 and 5/80 63/49 and 5/80 21/49 and 15/80 21/49 and 25/80 21/49 and 35/80