Compare 42/2 and 45/9
1st number: 21 0/2, 2nd number: 5 0/9
42/2 is greater than 45/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
42/2 = 42 × 9/2 × 9 = 378/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
45/9 = 45 × 2/9 × 2 = 90/18 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 378/18 > 90/18 or 42/2 > 45/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2 and 45/9 42/2 and 90/9 42/4 and 45/9 42/2 and 45/18 42/6 and 45/9 42/2 and 45/27 42/10 and 45/9 42/14 and 45/9 42/2 and 45/63