Compare 30/18 and 27/7
1st number: 1 12/18, 2nd number: 3 6/7
30/18 is smaller than 27/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
30/18 = 30 × 7/18 × 7 = 210/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
27/7 = 27 × 18/7 × 18 = 486/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/126 < 486/126 or 30/18 < 27/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18 and 27/7 30/18 and 54/7 30/36 and 27/7 30/18 and 27/14 90/18 and 27/7 30/18 and 81/7 30/54 and 27/7 30/18 and 27/21 30/90 and 27/7 30/18 and 27/35 30/18 and 27/49