Compare 6/18 and 40/90
6/18 is smaller than 40/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
6/18 = 6 × 5/18 × 5 = 30/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
40/90 = 40 × 1/90 × 1 = 40/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/90 < 40/90 or 6/18 < 40/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/18 and 40/90 6/18 and 80/90 6/36 and 40/90 6/54 and 40/90 30/18 and 40/90 6/90 and 40/90 42/18 and 40/90