Compare 25/21 and 50/20
1st number: 1 4/21, 2nd number: 2 10/20
25/21 is smaller than 50/20
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,
25/21 = 25 × 20/21 × 20 = 500/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
50/20 = 50 × 21/20 × 21 = 1050/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 500/420 < 1050/420 or 25/21 < 50/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21 and 50/20 25/42 and 50/20 25/21 and 50/40 75/21 and 50/20 25/63 and 50/20 25/21 and 50/60