Compare 5/18 and 27/30
5/18 is smaller than 27/30
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,
5/18 = 5 × 5/18 × 5 = 25/90 - 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
- 25/90 < 81/90 or 5/18 < 27/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18 and 27/30 5/18 and 54/30 5/36 and 27/30 5/18 and 27/60 15/18 and 27/30 5/18 and 81/30 5/54 and 27/30 5/18 and 27/90 25/18 and 27/30 5/90 and 27/30 35/18 and 27/30