Compare 4/7 and 3/20
4/7 is greater than 3/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
4/7 = 4 × 20/7 × 20 = 80/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
3/20 = 3 × 7/20 × 7 = 21/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 80/140 > 21/140 or 4/7 > 3/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/7 and 3/20 4/7 and 6/20 4/14 and 3/20 4/7 and 3/40 12/7 and 3/20 4/7 and 9/20 4/21 and 3/20 4/7 and 3/60 20/7 and 3/20 4/7 and 15/20 4/35 and 3/20 28/7 and 3/20 4/7 and 21/20 4/49 and 3/20