Compare 15/81 and 2/40
15/81 is greater than 2/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
15/81 = 15 × 40/81 × 40 = 600/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
2/40 = 2 × 81/40 × 81 = 162/3240 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 600/3240 > 162/3240 or 15/81 > 2/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/81 and 2/40 15/81 and 4/40 15/81 and 2/80 45/81 and 2/40 15/81 and 6/40 75/81 and 2/40 15/81 and 10/40 15/81 and 14/40