Compare 21/4 and 80/25
1st number: 5 1/4, 2nd number: 3 5/25
21/4 is greater than 80/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
21/4 = 21 × 25/4 × 25 = 525/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
80/25 = 80 × 4/25 × 4 = 320/100 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 525/100 > 320/100 or 21/4 > 80/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4 and 80/25 21/8 and 80/25 21/4 and 80/50 63/4 and 80/25 21/12 and 80/25 21/4 and 80/75 21/20 and 80/25 21/28 and 80/25