Compare 18/30 and 2/90
18/30 is greater than 2/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
18/30 = 18 × 3/30 × 3 = 54/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
2/90 = 2 × 1/90 × 1 = 2/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 54/90 > 2/90 or 18/30 > 2/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30 and 2/90 18/30 and 4/90 18/60 and 2/90 54/30 and 2/90 18/30 and 6/90 18/90 and 2/90 90/30 and 2/90 18/30 and 10/90 18/30 and 14/90