Compare 49/81 and 15/30
49/81 is greater than 15/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 30 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
49/81 = 49 × 10/81 × 10 = 490/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
15/30 = 15 × 27/30 × 27 = 405/810 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 490/810 > 405/810 or 49/81 > 15/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/81 and 15/30 49/81 and 15/60 49/81 and 45/30 49/81 and 15/90 49/81 and 75/30