Add 7/12 and 50/81
7/12 + 50/81 is 389/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
7/12 = 7 × 27/12 × 27 = 189/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
50/81 = 50 × 4/81 × 4 = 200/324 - Add the two like fractions:
189/324 + 200/324 = 189 + 200/324 = 389/324 - So, 7/12 + 50/81 = 389/324
In mixed form: 165/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12+50/81 7/24+50/81 21/12+50/81 7/36+50/81 35/12+50/81 7/60+50/81 49/12+50/81 7/84+50/81