Compare 5/30 and 30/81
5/30 is smaller than 30/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
5/30 = 5 × 27/30 × 27 = 135/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
30/81 = 30 × 10/81 × 10 = 300/810 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 135/810 < 300/810 or 5/30 < 30/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30 and 30/81 5/30 and 60/81 5/60 and 30/81 15/30 and 30/81 5/30 and 90/81 5/90 and 30/81 25/30 and 30/81 35/30 and 30/81