Add 7/15 and 50/81
7/15 + 50/81 is 439/405.
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,
7/15 = 7 × 27/15 × 27 = 189/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
50/81 = 50 × 5/81 × 5 = 250/405 - Add the two like fractions:
189/405 + 250/405 = 189 + 250/405 = 439/405 - So, 7/15 + 50/81 = 439/405
In mixed form: 134/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15+50/81 7/30+50/81 21/15+50/81 7/45+50/81 35/15+50/81 7/75+50/81 49/15+50/81