Compare 15/18 and 25/30
15/18 is equivalent to 25/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
15/18 = 15 × 5/18 × 5 = 75/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
25/30 = 25 × 3/30 × 3 = 75/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/90 = 75/90 or 15/18 = 25/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18 and 25/30 15/18 and 50/30 15/36 and 25/30 15/18 and 25/60 45/18 and 25/30 15/18 and 75/30 15/54 and 25/30 15/18 and 25/90 75/18 and 25/30 15/90 and 25/30