Compare 4/25 and 8/21
4/25 is smaller than 8/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 25 × 21 = 525,
4/25 = 4 × 21/25 × 21 = 84/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
8/21 = 8 × 25/21 × 25 = 200/525 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 84/525 < 200/525 or 4/25 < 8/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/25 and 8/21 4/25 and 16/21 4/50 and 8/21 4/25 and 8/42 12/25 and 8/21 4/25 and 24/21 4/75 and 8/21 4/25 and 8/63 20/25 and 8/21 4/25 and 40/21 28/25 and 8/21 4/25 and 56/21