Compare 45/18 and 18/9
1st number: 2 9/18, 2nd number: 2 0/9
45/18 is greater than 18/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
45/18 = 45 × 1/18 × 1 = 45/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
18/9 = 18 × 2/9 × 2 = 36/18 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 45/18 > 36/18 or 45/18 > 18/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18 and 18/9 45/18 and 36/9 45/36 and 18/9 45/18 and 54/9 45/54 and 18/9 45/18 and 18/27 45/18 and 90/9 45/90 and 18/9 45/18 and 18/45 45/18 and 18/63