Compare 20/90 and 18/3
1st number: 20/90, 2nd number: 6 0/3
20/90 is smaller than 18/3
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 3 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Likewise, for the 2nd fraction, since 3 × 30 = 90,
18/3 = 18 × 30/3 × 30 = 540/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 20/90 < 540/90 or 20/90 < 18/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/90 and 18/3 20/90 and 36/3 20/90 and 18/6 60/90 and 18/3 20/90 and 54/3 20/90 and 18/9 20/90 and 90/3 20/90 and 18/15 20/90 and 18/21