Compare 18/28 and 4/20
18/28 is greater than 4/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
18/28 = 18 × 5/28 × 5 = 90/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
4/20 = 4 × 7/20 × 7 = 28/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/140 > 28/140 or 18/28 > 4/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28 and 4/20 18/28 and 8/20 18/56 and 4/20 18/28 and 4/40 54/28 and 4/20 18/28 and 12/20 18/84 and 4/20 18/28 and 4/60 90/28 and 4/20 18/28 and 28/20