Compare 20/28 and 4/30
20/28 is greater than 4/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
20/28 = 20 × 15/28 × 15 = 300/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
4/30 = 4 × 14/30 × 14 = 56/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 300/420 > 56/420 or 20/28 > 4/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/28 and 4/30 20/28 and 8/30 20/56 and 4/30 20/28 and 4/60 60/28 and 4/30 20/28 and 12/30 20/84 and 4/30 20/28 and 4/90 20/28 and 20/30 20/28 and 28/30