Add 7/81 and 14/12
1st number: 7/81, 2nd number: 1 2/12
7/81 + 14/12 is 203/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
7/81 = 7 × 4/81 × 4 = 28/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
14/12 = 14 × 27/12 × 27 = 378/324 - Add the two like fractions:
28/324 + 378/324 = 28 + 378/324 = 406/324 - 406/324 simplified gives 203/162
- So, 7/81 + 14/12 = 203/162
In mixed form: 141/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/81+14/12 7/81+28/12 7/81+14/24 21/81+14/12 7/81+42/12 7/81+14/36 35/81+14/12 7/81+70/12 7/81+14/60 49/81+14/12 7/81+98/12 7/81+14/84