Compare 3/18 and 16/20
3/18 is smaller than 16/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
3/18 = 3 × 10/18 × 10 = 30/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
16/20 = 16 × 9/20 × 9 = 144/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/180 < 144/180 or 3/18 < 16/20
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 16/20 3/18 and 32/20 3/36 and 16/20 3/18 and 16/40 9/18 and 16/20 3/18 and 48/20 3/54 and 16/20 3/18 and 16/60 15/18 and 16/20 3/18 and 80/20 3/90 and 16/20 21/18 and 16/20