Compare 30/9 and 42/81
1st number: 3 3/9, 2nd number: 42/81
30/9 is greater than 42/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
30/9 = 30 × 9/9 × 9 = 270/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
42/81 = 42 × 1/81 × 1 = 42/81 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 270/81 > 42/81 or 30/9 > 42/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9 and 42/81 30/9 and 84/81 30/18 and 42/81 90/9 and 42/81 30/27 and 42/81 30/45 and 42/81 30/63 and 42/81