Compare 9/18 and 4/20
9/18 is greater than 4/20
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,
9/18 = 9 × 10/18 × 10 = 90/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
4/20 = 4 × 9/20 × 9 = 36/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/180 > 36/180 or 9/18 > 4/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18 and 8/20 9/36 and 4/20 9/18 and 4/40 27/18 and 4/20 9/18 and 12/20 9/54 and 4/20 9/18 and 4/60 45/18 and 4/20 9/90 and 4/20 63/18 and 4/20 9/18 and 28/20