Compare 18/7 and 36/20
1st number: 2 4/7, 2nd number: 1 16/20
18/7 is greater than 36/20
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,
18/7 = 18 × 20/7 × 20 = 360/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
36/20 = 36 × 7/20 × 7 = 252/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 360/140 > 252/140 or 18/7 > 36/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/7 and 36/20 18/7 and 72/20 18/14 and 36/20 18/7 and 36/40 54/7 and 36/20 18/21 and 36/20 18/7 and 36/60 90/7 and 36/20 18/35 and 36/20 18/49 and 36/20