Compare 25/21 and 28/80
1st number: 1 4/21, 2nd number: 28/80
25/21 is greater than 28/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
25/21 = 25 × 80/21 × 80 = 2000/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
28/80 = 28 × 21/80 × 21 = 588/1680 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 2000/1680 > 588/1680 or 25/21 > 28/80
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 28/80 25/21 and 56/80 25/42 and 28/80 75/21 and 28/80 25/21 and 84/80 25/63 and 28/80