Compare 81/8 and 18/30
1st number: 10 1/8, 2nd number: 18/30
81/8 is greater than 18/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
81/8 = 81 × 15/8 × 15 = 1215/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
18/30 = 18 × 4/30 × 4 = 72/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1215/120 > 72/120 or 81/8 > 18/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/8 and 36/30 81/16 and 18/30 81/8 and 18/60 81/8 and 54/30 81/24 and 18/30 81/8 and 18/90 81/8 and 90/30 81/40 and 18/30 81/56 and 18/30