Compare 4/81 and 30/8
1st number: 4/81, 2nd number: 3 6/8
4/81 is smaller than 30/8
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
4/81 = 4 × 8/81 × 8 = 32/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
30/8 = 30 × 81/8 × 81 = 2430/648 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 32/648 < 2430/648 or 4/81 < 30/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/81 and 30/8 4/81 and 60/8 4/81 and 30/16 12/81 and 30/8 4/81 and 90/8 4/81 and 30/24 20/81 and 30/8 4/81 and 30/40 28/81 and 30/8 4/81 and 30/56