Compare 42/9 and 20/18
1st number: 4 6/9, 2nd number: 1 2/18
42/9 is greater than 20/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
42/9 = 42 × 2/9 × 2 = 84/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
20/18 = 20 × 1/18 × 1 = 20/18 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 84/18 > 20/18 or 42/9 > 20/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9 and 20/18 42/9 and 40/18 42/18 and 20/18 42/9 and 20/36 42/9 and 60/18 42/27 and 20/18 42/9 and 20/54 42/45 and 20/18 42/9 and 20/90 42/63 and 20/18