Compare 25/30 and 18/15
1st number: 25/30, 2nd number: 1 3/15
25/30 is smaller than 18/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
25/30 = 25 × 1/30 × 1 = 25/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
18/15 = 18 × 2/15 × 2 = 36/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 25/30 < 36/30 or 25/30 < 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30 and 18/15 25/30 and 36/15 25/60 and 18/15 25/30 and 18/30 75/30 and 18/15 25/30 and 54/15 25/90 and 18/15 25/30 and 18/45 25/30 and 90/15 25/30 and 18/75