Compare 3/18 and 81/5
1st number: 3/18, 2nd number: 16 1/5
3/18 is smaller than 81/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
81/5 = 81 × 18/5 × 18 = 1458/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/90 < 1458/90 or 3/18 < 81/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18 and 81/5 3/36 and 81/5 3/18 and 81/10 9/18 and 81/5 3/54 and 81/5 3/18 and 81/15 15/18 and 81/5 3/90 and 81/5 3/18 and 81/25 21/18 and 81/5 3/18 and 81/35