Compare 63/18 and 81/8
1st number: 3 9/18, 2nd number: 10 1/8
63/18 is smaller than 81/8
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
63/18 = 63 × 4/18 × 4 = 252/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
81/8 = 81 × 9/8 × 9 = 729/72 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 252/72 < 729/72 or 63/18 < 81/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/36 and 81/8 63/18 and 81/16 63/54 and 81/8 63/18 and 81/24 63/90 and 81/8 63/18 and 81/40 63/18 and 81/56