Compare 90/18 and 63/27
1st number: 5 0/18, 2nd number: 2 9/27
90/18 is greater than 63/27
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
90/18 = 90 × 3/18 × 3 = 270/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
63/27 = 63 × 2/27 × 2 = 126/54 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 270/54 > 126/54 or 90/18 > 63/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/36 and 63/27 90/18 and 63/54 90/54 and 63/27 90/18 and 63/81