Compare 1/18 and 7/45
1/18 is smaller than 7/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
1/18 = 1 × 5/18 × 5 = 5/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
7/45 = 7 × 2/45 × 2 = 14/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 5/90 < 14/90 or 1/18 < 7/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/18 and 7/45 1/18 and 14/45 1/36 and 7/45 1/18 and 7/90 3/18 and 7/45 1/18 and 21/45 1/54 and 7/45 5/18 and 7/45 1/18 and 35/45 1/90 and 7/45 7/18 and 7/45 1/18 and 49/45