Compare 49/21 and 40/20
1st number: 2 7/21, 2nd number: 2 0/20
49/21 is greater than 40/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
49/21 = 49 × 20/21 × 20 = 980/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
40/20 = 40 × 21/20 × 21 = 840/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 980/420 > 840/420 or 49/21 > 40/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21 and 40/20 49/21 and 80/20 49/42 and 40/20 49/63 and 40/20 49/21 and 40/60