Compare 27/9 and 42/15
1st number: 3 0/9, 2nd number: 2 12/15
27/9 is greater than 42/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
27/9 = 27 × 5/9 × 5 = 135/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
42/15 = 42 × 3/15 × 3 = 126/45 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 135/45 > 126/45 or 27/9 > 42/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/9 and 42/15 27/9 and 84/15 27/18 and 42/15 27/9 and 42/30 81/9 and 42/15 27/9 and 42/45 27/45 and 42/15 27/9 and 42/75 27/63 and 42/15