Compare 45/7 and 63/20
1st number: 6 3/7, 2nd number: 3 3/20
45/7 is greater than 63/20
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,
45/7 = 45 × 20/7 × 20 = 900/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
63/20 = 63 × 7/20 × 7 = 441/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 900/140 > 441/140 or 45/7 > 63/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7 and 63/20 45/14 and 63/20 45/7 and 63/40 45/21 and 63/20 45/7 and 63/60 45/35 and 63/20 45/49 and 63/20