Compare 81/30 and 14/40
1st number: 2 21/30, 2nd number: 14/40
81/30 is greater than 14/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
81/30 = 81 × 4/30 × 4 = 324/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
14/40 = 14 × 3/40 × 3 = 42/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 324/120 > 42/120 or 81/30 > 14/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/30 and 28/40 81/60 and 14/40 81/30 and 14/80 81/30 and 42/40 81/90 and 14/40 81/30 and 70/40 81/30 and 98/40