Compare 3/90 and 20/28
3/90 is smaller than 20/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
3/90 = 3 × 14/90 × 14 = 42/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
20/28 = 20 × 45/28 × 45 = 900/1260 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 42/1260 < 900/1260 or 3/90 < 20/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/90 and 20/28 3/90 and 40/28 3/90 and 20/56 9/90 and 20/28 3/90 and 60/28 3/90 and 20/84 15/90 and 20/28 21/90 and 20/28