Compare 3/18 and 7/30
3/18 is smaller than 7/30
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,
3/18 = 3 × 5/18 × 5 = 15/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
7/30 = 7 × 3/30 × 3 = 21/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/90 < 21/90 or 3/18 < 7/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18 and 7/30 3/18 and 14/30 3/36 and 7/30 3/18 and 7/60 9/18 and 7/30 3/18 and 21/30 3/54 and 7/30 3/18 and 7/90 15/18 and 7/30 3/18 and 35/30 3/90 and 7/30 21/18 and 7/30 3/18 and 49/30