Add 12/81 and 7/36
12/81 + 7/36 is 37/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 36 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
12/81 = 12 × 4/81 × 4 = 48/324 - Likewise, for the 2nd fraction, since 36 × 9 = 324,
7/36 = 7 × 9/36 × 9 = 63/324 - Add the two like fractions:
48/324 + 63/324 = 48 + 63/324 = 111/324 - 111/324 simplified gives 37/108
- So, 12/81 + 7/36 = 37/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/81+7/36 12/81+14/36 12/81+7/72 36/81+7/36 12/81+21/36 60/81+7/36 12/81+35/36 84/81+7/36 12/81+49/36