Add 3/15 and 24/81
3/15 + 24/81 is 67/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
3/15 = 3 × 27/15 × 27 = 81/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
24/81 = 24 × 5/81 × 5 = 120/405 - Add the two like fractions:
81/405 + 120/405 = 81 + 120/405 = 201/405 - 201/405 simplified gives 67/135
- So, 3/15 + 24/81 = 67/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15+24/81 3/15+48/81 3/30+24/81 9/15+24/81 3/15+72/81 3/45+24/81 3/75+24/81 21/15+24/81