Add 10/15 and 2/81
10/15 + 2/81 is 56/81.
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,
10/15 = 10 × 27/15 × 27 = 270/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
2/81 = 2 × 5/81 × 5 = 10/405 - Add the two like fractions:
270/405 + 10/405 = 270 + 10/405 = 280/405 - 280/405 simplified gives 56/81
- So, 10/15 + 2/81 = 56/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15+2/81 10/15+4/81 10/30+2/81 30/15+2/81 10/15+6/81 10/45+2/81 50/15+2/81 10/15+10/81 10/75+2/81 70/15+2/81 10/15+14/81