Compare 4/8 and 30/81
4/8 is greater than 30/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
4/8 = 4 × 81/8 × 81 = 324/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
30/81 = 30 × 8/81 × 8 = 240/648 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 324/648 > 240/648 or 4/8 > 30/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8 and 60/81 4/16 and 30/81 12/8 and 30/81 4/8 and 90/81 4/24 and 30/81 20/8 and 30/81 4/40 and 30/81 28/8 and 30/81 4/56 and 30/81