Compare 80/49 and 21/20
1st number: 1 31/49, 2nd number: 1 1/20
80/49 is greater than 21/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
80/49 = 80 × 20/49 × 20 = 1600/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
21/20 = 21 × 49/20 × 49 = 1029/980 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1600/980 > 1029/980 or 80/49 > 21/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/49 and 42/20 80/98 and 21/20 80/49 and 21/40 80/49 and 63/20 80/49 and 21/60