Compare 18/21 and 2/25
18/21 is greater than 2/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 25 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
18/21 = 18 × 25/21 × 25 = 450/525 - Likewise, for the 2nd fraction, since 25 × 21 = 525,
2/25 = 2 × 21/25 × 21 = 42/525 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 450/525 > 42/525 or 18/21 > 2/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/21 and 2/25 18/21 and 4/25 18/42 and 2/25 18/21 and 2/50 54/21 and 2/25 18/21 and 6/25 18/63 and 2/25 18/21 and 2/75 90/21 and 2/25 18/21 and 10/25 18/21 and 14/25