Compare 15/90 and 27/30
15/90 is smaller than 27/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
27/30 = 27 × 3/30 × 3 = 81/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/90 < 81/90 or 15/90 < 27/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90 and 27/30 15/90 and 54/30 15/90 and 27/60 45/90 and 27/30 15/90 and 81/30 15/90 and 27/90 75/90 and 27/30