Compare 21/50 and 20/10
1st number: 21/50, 2nd number: 2 0/10
21/50 is smaller than 20/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 10 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 50 × 1 = 50,
21/50 = 21 × 1/50 × 1 = 21/50 - Likewise, for the 2nd fraction, since 10 × 5 = 50,
20/10 = 20 × 5/10 × 5 = 100/50 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 21/50 < 100/50 or 21/50 < 20/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50 and 20/10 21/50 and 40/10 63/50 and 20/10 21/50 and 60/10 21/50 and 20/30 21/50 and 20/50 21/50 and 20/70