Compare 21/49 and 36/20
1st number: 21/49, 2nd number: 1 16/20
21/49 is smaller than 36/20
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,
21/49 = 21 × 20/49 × 20 = 420/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
36/20 = 36 × 49/20 × 49 = 1764/980 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 420/980 < 1764/980 or 21/49 < 36/20
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 36/20 21/49 and 72/20 21/98 and 36/20 21/49 and 36/40 63/49 and 36/20 21/49 and 36/60